No, no I don't think I will.

That's why I chose art

Where is the 4 from

I did 100th like

I finally asked my teacher why this is wrong 😂 well guess what ? You can't multiple it with a variable quantity Don't ask me why. He was super convincing.

LMAO U got me dead bro

😂😂😂LMFAO🤣🤣🤣

Lol

@@teslaaf5830 no shut up

lol

😂😂😂

Making questions is harder than making answers. Always remember that.

No they make others bored..😴😴

This wasn't hard this was stupid

😂😂😂😂

Underrated comment

True when i was in elementary i always get the correct answer but i get only 1 pt out of 5pt because my method was always wrong according to my teacher. This is the reason i am scared to do math.

@@elisabasco9289 yeah I understand the feeling 😕

😂😂😂

​@@elisabasco9289did you at least try to understand why she considered your way wrong? Sometimes it's possible to get to the right answer through wrong methods by coincidence and sometimes teachers want tests to evaluate if you've learned the method they've shown (in which case they should ask you to use it in the question). If you understand what you're doing wrong, you won't be scared of maths anymore

Tum to serious hi ho gaye yaar ....just chill bro👌👌

Well technically, the sqrt(x) function has a range of all positive real numbers, so sqrt(x^2) is just x. We know that if sqrt(x) = y then -y is also a solution to x = y^2 because of how exponents work, so we consider it in cases where the sign matters, but the sqrt function itself just returns a positive real number (assuming a domain of all positive real numbers).

Yes..I thought that too...modulus nahi lagaya

Bro which planet ?

@@sekharapramod7819 bro.. thats what he exactly meant.. y r u explaining the logic behind his statement?🙄.. and -y as you mentioned will be infinite series of -4

Lmao ikr

😂😂

😂😂😂😂😂

Whenever I see the word 'sqrt' I always read it as sq*irt

I think you are a student of computer science (CS)

Underrated You nailed it bro 😂

He actually proved something.

😂😂😂

😂😂

😂

I guess he changes like blackpenredpen

Ephesians‬ ‭6:10‭-‬18‬ ‭Finally, my brethren, be strong in the Lord, and in the power of his might. Put on the whole armour of God, that ye may be able to stand against the wiles of the devil. For we wrestle not against flesh and blood, but against principalities, against powers, against the rulers of the darkness of this world, against spiritual wickedness in high places. Wherefore take unto you the whole armour of God, that ye may be able to withstand in the evil day, and having done all, to stand. Stand therefore, having your loins girt about with truth, and having on the breastplate of righteousness; and your feet shod with the preparation of the gospel of peace; above all, taking the shield of faith, wherewith ye shall be able to quench all the fiery darts of the wicked. And take the helmet of salvation, and the sword of the Spirit, which is the word of God: praying always with all prayer and supplication in the Spirit, and watching thereunto with all perseverance and supplication for all saints. The bible is no old book. You have to really let Christ open your eyes; to see the world in shambles. Many people say it's a religion to lock up people in chains, and say it's a rule book.. why? Because people hate hearing the truth, it hurts their flesh, it's hurts their pride, it's exposes on what things have they done..people love this world so much, s*x, money, power, women, supercars.. things of this world. Still trying to find something that can fill that emptiness in your heart. You can't find that in this world.. only in Christ, the bible is no chains, it's a chainbreaker. Breaking your sins into pieces... Repent now, and turn back to the true Lord only.. God bless. 😢😢😢

That’s kinda his “thing.”

X=5

@@sidharth8794 2nd step

0(x+4) = 0 therefore 0=0 since (x-5) substituted into 0

But why 4 of all possible numbers

It can be anything and still create an infinite fraction

Ah, yes, this sooooooo advanced we first did it in our 2nd grade of middle school

What country are you from? And on what grade are you at the moment and what are you studying in math rn?

@@theimmux3034 I am from Greece. Our school system is very different from America's if that's where you're from. Our education goes like this: 1. Kindergarten. You start at five (or four, only if you turn five during the year) and you learn the alphabet and how to count till 10. 2. Elementary school. It has 6 grades in which you learn the foundation of all important classes (Greek Language and a small amount of literature getting larger while you grow older and pass classes, Mathematics, History- greek Mythology for the 3rd year and actual history in later years, Physics (I don't remember which year you start this class), Music, P.E., Computers, Acting classes (until 2nd or 3rd year) Art. and R.E., which you aren't taught much (this includes all classes stated after physics). There are some classes which are less important and aren't taught with much care such as a class for the environment). We also get a second foreign language which could either be French, German or Italien (mostly French or German) depending on what we choose. 3. Middle School. It has 3 grades in which you learn things far more complicated and in detail than before (The classes are: Greek, Literature, a much more detailed History, Ancient Greek and Ancient Greek literature (in grade 1 it's Homer's Odyssey, in grade 2 Homer's iliad and in third year Euripides Helen), Maths-algebra and geometry, Physics, Science (Labs aren't used much in my school), Biology, Geography (only for grade 1 and 2), English- where the classes are divided in advanced and starters (but it doesn't matter because the class either way goes by very slowly, to the point where you question the existance of this division), a second language (It can be different from the one you chose during your two last years in Elementary school) like German, French or Italien (some school only have two, or even one second language course you can take), and other still less important subject like computers, technology, R.E., P.E., music and arts (I might be forgetting some) 4. High-school. It also has 3 grades but it's much more complicated. There are two types of High-schools: one where you go study for the job you've already chosen (which usually are very specific Jobs and you don't have as many options) or one where it can be a lot more general. During your 1st grade of high school in one of the general ones you study all previously stated subjects but at the end of the year you are forced to make a decision that will affect the rest of your life: chose a "heading". I am not too sure of this process since I haven't been through it yet so it's going to be very vague. You basically choose a packet of subjects depending on what you want to do after school is over, help you on finding a college with a process of examination during the end of your 3rd and final year. There are the theoretical (which include greek language, Literature, Ancient Greek, Ancient Greek literature, History, Latin and essay (since I have not yet been in high school I can't really know if they have any other subjects)), there is also the "positive" (in which you study the mathematical and scientific ones like math, science, Physics, etc.), a health heading which you chose if you want to become any kind of Doctor (with classes similar to the positive but also including biology), an Economic heading and I sadly don't know if there are any others. I also happen to have no idea how things work in the other type of high school and I honestly don't plan on knowing. ●We don't have lockers or locker rooms, we are graded from 1 to 20 (20 is the highest grade you can get) both during tests and our general grades. We have 3 semesters. From the 1st grade of Middle school we have examinations at the end of the year. •We start school on the 11th of September and finish at the start of June (depending on how long the exams take). •The bell rings at 8:15, the 40 minutes classes are 6 or 7 ( 7 only on Mondays and Tuesdays in my school) and we finish somewhere between 1 o'clock on six-lesson days and 2 o'clock on seven-lesson days. •The grade you need to have to pass is 29 in each class when you add each semester's grades and the final examination. •In middle school you don't have final examinations for all subjects, only the basic five till last year but now it's changed again and we have exams in all the basic subjects, including greek and Ancient Greek Language and literature, History, Mathematics, Science, Physics, English and Biology. •If we don't reach 29, we retake the examination in August or September while having classes the school provides throughout the summer. ●I implied that it wasn't something that advanced because we start studying positive and negative numbers during the last semester of our first grade in middle school, though we are officially taught about hem in our 2nd grade and we perfect it in our 3rd. We still have 3 years of studying when it comes to those who follow a heading with math, which, to me, means that it's not as advanced since we learn it while still in middle school. That took too long and my fingers hurt to the point where I wish I would've sent you to Google, but I feel like it's worth it. I feel like I don't make any sense at all so If you have any further questions, ask away, and I will try to answer them all. EDIT: I am in my final year of Middle school. I am 15 (our system follows years, which makes me unlucky because I was born on the 4th February, which is why most of my friends are at least half a year younger than me, since our year of birth was 2006). I am sad to inform you that I don't know how you call what we do in math right now in English so I will try to show you a small sample, though we know a lot more than this : (2x-4y)(2x+4y)

@@SilverD33r wtf is that article

@@SilverD33r are you really that good in english i mean writing texts in their rules

lmao

haha funny

Hhh

Wtf

Your comment has made his fallacy obvious🤣🤣

where are you from??

No, I'm Asian and i dont do all that

As an Asian I can confirm that this is my favourite leisure time activity since I was 3

As an Asian kid myself he isn’t asian, those equations are like 2=0+2, and 2=1+1

Math around

@@sanyamgarg9584 lollllllll

@@sanyamgarg9584 biology+ math together 🤓🤓😈 😎😎🤣🤣😂🤣

@@sanyamgarg9584 🤯

@@sanyamgarg9584 🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏 आपके चरण कहां हैं महाराज

@@user-hs1kv8rb6x 😂🤣🤣🤣

It's not something easily forgotten...

Underrated comment.

thank you

Thank you

kzfaq.info/get/bejne/oteGeMqHyseYdJs.html 😂

50c and 50$. Divide both sides by 50 and get 1c and 1$. Since sqrt(1) is 1, we can square root 1c or 0.01 an infinite about of times and get .99999999999 which is almost equal to 1.

He has a chanell blue pen red pen check it out, this chanell is using hus clips

I do the same with pens while my left hand is busy😈

Kitne marks ayee is bar ?

@@Its_yer_Dev 😂😂😂😂😂100/100

@@tomcat1184 अबे साले😂😂😂😂😂 तू ही है वो।

you are

that's what I was going to say !!!!👀😁

That's why the channel's name is black pen red pen😂🔥

Because idk wht the hell he is doing just i see fucking numbers everywhere

Well it is a simple switching. Maybe it is the timelapse that made you feel it like an awe

I think nobody understands anything of what he wrote apart from u 😂

yes..

X=√20+5 but x= 5 5 = √25 5=5

@@anishkumbhar4962 also, x=-√(20+(-4)) = -4

@@joshurlay teach me the ways of the mathematics

Ong

Lmao

Confused

Didn't get it

It acctually is very simple

I wanna know the mistakes...

The explanation might end up a bit long so please bear with me. When he multiplied by (x+4) he automatically made it so that x could be either -4 or 5, which means that x isn't necessarily equal to 5, so we are already not proving that x=5. Next, when he rooted x squared, since we don't know if x is positive or negative, it's not equal to x, it's equal to |x|. So we get two equations. One is: x=√(20+x) ,if x>=0 The other is: x=-√(20+x) ,if -20=

@@nomg2023 he took the sqrt of a squared number which is per definition positive. 20 is larger than |4| so thats always positive as well. This cannot lead to extra imaginary equations. Edit: this comment is bollocks, completely untrue.

@@joske7804 the root cancels the square. You know x^2 is positive but you don't know if x is positive. If you square a square root you get x. If you square root a square you get |x| which is x if x is positive or -x if x is negative. It's basic algebra Edit: I just noticed that you said that 20 is larger than |4|. There is no |x| in the second part of the equation (the right one), only in the first one thus creating the two equations. The x in √(20+x) is always a normal x, it never changes to a |x|

@@nomg2023 wtf....im loser

Chaba

How to like this comment infinity times ?????

@@S78926 thanx .... my comment is very underrated

Lol why am I laughing

kzfaq.info/get/bejne/i9amnpSQspamXZ8.html😊😊

Not the cure....They create cancer

Underrated comment

Brilliant! This was something I was doing when I was in 7th grade!

True

You missed one step X = 0+5. So x = 5 😂

@@ashishvaswani5921 i just assumed that people get this automatically but u right lmao

JEE advanced students: I used to do this in class 5😂

Pretty easy though

@@memeschool6938 they did teach us this in class 8 in a jee coaching class lol

I use to this while preparing for exams just for time pass

Yeah like in my college this topic is going on

Basic high school math

@@Medellinish it's middle school man

@@yeahboi4228 I'm from Europe and said what would most apply. After elementary school you have 8 years of "high school" here before going to university

@@Medellinish lm from Europe too and same thing applies here

@@yeahboi4228 so what is the point of a discussion about semantics?? With your answer you clearly seemed wanting to "correct" me whatsoever, but I have never been in a "middle school" since there is no such thing where I live. I guess we still mean the same age, so it's completely unnecessary to have a discussion beside the point and about semantics. Call it what you want jesus.

I am trying to know what are mixed numbers :):):)

@@tarunagrawal9273 😂😅😅

@pmevsfçfhjn lfoejnj şjlfzjn ıbzbui Bruh

Mixed numbers are an abomination. Just put a plus sign in between, like the rest of the world does. I'll never understand why this is still taught today.

What are mixed numbers?

And the question is in Section-C 😅

Or the dreaded Section-D

@@69_pigeons_in_a_trenchcoat boards wale ho kya 😂😂

Good One Bhai !!! 😂😂😂😂😂

That too the last sentence LHS = RHS Hence proved !

Yaa 😁😁😁😁😁😁

kzfaq.info/get/bejne/oteGeMqHyseYdJs.html 😂

Maybe😂😂

crack

That's because when u aplly sqrt u lose th equivalence, that's just no se'se bulshit

@@ziad4120What that’s not true lol. To get rid of exponents you add a square root which makes the equation equivalent.

well, its asian math.

Where did the (x+4) came from ??

@@Red-bw5kl exactly my point

Nduduzo Blose ya m2

@@Red-bw5kl he multiplied both sides by (x+4) but 0(x+4) is 0 which is why it became (x-5)(x+4)=0. Basically, it’s useless math 😂

Lol, he's blessing this guy from heaven

@@vinayakk2745 yes!

No way he is no match of ramanujan !!

@@tomcat1184 bruh

@@vinayakk2745 this guy literally multiplied x+4 by 0 in an equation

Two markers

I mean the channel name is black pen red pen, so you’d hope so

It took me the whole video to notice he had 2 markers in his hand... I can imagine how many time I need to get the equation

@@funnyyoushouldsaytha ohhhh you’re incredible man

I always use two pens too but his pen style not suitable for book writing so i create new method😆

me too

Samee 😹🌚💔

You ma’am are an idiot.

Lol

But that is legal though

It's simple, just replace x with 5

@@Wannabelokesh because x equals five.

@@Wannabelokesh what's wrong with root 20

Its means dont try to take maths in degree college

kzfaq.info/get/bejne/i9amnpSQspamXZ8.html🐥

Jesus loves you obey the Lord, you can be saved Jesus loves you. We need Jesus we sinned Jesus died for us in the cross

@@Pedro-pl6to So you like fairy tales ?

Ig when he introduced the x+4 he implies that x=-4 which contradicts x=5

@@utsavpathak2122 it gave a second solution to a quadratic, but 'x = 5' is still true. He did not show it, but this was valid because he multiplied (x+4) on both sides, the RHS happened to be 0 so it remained 0.

When he multiply with( x+4) (x-5)=0 means x=5and x=-4 and i dont think he can underoot this eq because in underoot x should be greater than zero ??🤔🤔

kzfaq.info/get/bejne/i9amnpSQspamXZ8.html😊😊

@@Aditya-jz7ty Foreigners don't understand Hindi, so your can't use this on an international platform. To many people it will be unintelligible, and to others it may look like the German word Mein, which means mine.

😂😂😂 really though

I would, maths is fun.

@@gamerz8541math's anything but fun :/

@@ssj4edits840 having trouble with your exams huh

@@iyedbouazdia3594 kinda... XD

But enough to confuse some dumb

kzfaq.info/get/bejne/oteGeMqHyseYdJs.html 🥺

kzfaq.info/get/bejne/i9amnpSQspamXZ8.html😊😊

@@assassin2550damn that was harsh

They do htam

Yeah I thought so XD, I wonder where (x+4) came from.

@@kurtblancheardina929 no (x + 4) part is ok bc if you multiply any number to 0 the result will be 0 as well problem is in roots - the fact that x² = y² doesn't mean that x = y for example (-1)² = 1² but -1 ≠ 1

It seems correct. The square root is okay because x=5 is positive so the absolute value is indeed just x, and multiply 0 by anything gives you 0 also. So everything seems good to me

@@romain.guillaume oh sorry i kinda forgot that x has strict value then everything is ok

@@romain.guillaume EXCUSSSSEEEE me, I'll have you know that I've been elected for star student 3 times in this last month (just to make it clear, I'm joking, my math clocks out sometime during the process, so I have no idea how he does this)

kzfaq.info/get/bejne/oteGeMqHyseYdJs.html 🥺

“If you can’t explain it simply, you don’t know it well enough”-Albert Einstein

Is he really simplifying it, or adding something to the equation that didn't originally exist...?? Or is he just trying to look smart, have only taken Calc 1, but someone smart said, "Opinions are like a holes, everyones got one, and they stink."

@@justinpietrycha2179 s t i n k y

@@animeshpanda1073 Stinky Pinky

@ezlyfe I didn't say that you weren't entitled to your opinion. But I guess you felt the need to call somebody else out that looked small to make yourself feel big. Did it feel good???

kzfaq.info/get/bejne/oteGeMqHyseYdJs.html 🥺

Agree

What do you mean? There was only one problem, but that was at the very end

@@johnmisley5411 nevermind

@@mansishukla3036 xD the "nevermind" killed me. I looked to the comments for this exact situation and it didn't disappoint

Which rules are broken???

@Radu Capșa but when you multiply by (x + 4) it creates another value for x, which is -4

@Radu Capșa no we can't lol

If you keep |x| you'll end up with solutions we originally took {-4,5}but if you solve √20+(√20+(√20+... You have to reject -4 as the possible value of the expression...... Btw bprp has a cool beard🙂

@Radu Capșa you can't LOL everything below (x-5)(x+4)=0 is derived from that step, so the expression we get must equal 5 and 4... Clearly it doesn't so it's nonsense.

@Radu Capșa that's irrelevant. You just as well could have taken x=-4.