Algebra - Completing the Square - Solving Quadratic Equations

  Рет қаралды 69,788

tecmath

tecmath

Күн бұрын

Completing the Square - Solving Quadratic Equations . This lesson in Algebra looks at expanding brackets with perfect squares. To donate to the tecmath channel: paypal.me/tecmath?locale.x=en_AU To donate to the tecmath channel: paypal.me/tecmath?locale.x=en_AU
To support tecmath on Patreon: / tecmath
To buy tecmath mechandise: teespring.com/stores/tecmath-...

Пікірлер: 64
@monsterjazzlicks
@monsterjazzlicks 8 жыл бұрын
It would be really helpful if these videos were given numbers in a series please, as I am never sure which one is next! Thanks.
@fexbd
@fexbd 4 жыл бұрын
*Gets recommended this 7 years later*
@sirisha6611
@sirisha6611 11 жыл бұрын
It was a silly mistake ! and I'm pretty sure he knows the answer of 3 times 2
@MrRikkert12
@MrRikkert12 11 жыл бұрын
1:20 you say: "3 times 2 is 15". Well i'll admit that i'm not good in math and stuff, but though i'm pretty sure that's wrong.
@emmacoakley4823
@emmacoakley4823 10 жыл бұрын
great video! I never understood quadratic equations until watching this video. excellent and easy to comprehend examples! thank you :-)
@childbirthispainful203
@childbirthispainful203 8 жыл бұрын
you are thegood teacher and a life saver thank you soooooo much now i dont have to worry about math stuff cause you taught the easy way and more understandable and gives us shortcuts.
@zarawilkie1147
@zarawilkie1147 8 жыл бұрын
So after this video i dont think im going to have a mental break down because of my maths test tomorrow, cheers
@cocopots
@cocopots 6 жыл бұрын
Thank you so much, this helped a bunch.
@supremegamers1527
@supremegamers1527 8 жыл бұрын
2x3=6
@bulemsomi5760
@bulemsomi5760 7 жыл бұрын
uhh wasn't the first questions answer wrong????
@S-D76
@S-D76 4 жыл бұрын
Love from India ❤️ sir
@bobmarleyiscool74
@bobmarleyiscool74 11 жыл бұрын
Great video mate
@RichardTuckman
@RichardTuckman 9 жыл бұрын
Don't you also use the FOIL concept? First, Outer, Inner, and Last to factor these?
@ThatRandomGuyWithNoName
@ThatRandomGuyWithNoName 3 жыл бұрын
Very helpful
@sabahachaudhry1350
@sabahachaudhry1350 6 жыл бұрын
can you please do a video on quadratic equations for year 9. I'm am really stuck and would love your help @tecmath
@YOURFAVD10R
@YOURFAVD10R 3 жыл бұрын
Thanks
@beinghuman3276
@beinghuman3276 8 жыл бұрын
what's 3x2 15
@ruger1058
@ruger1058 8 жыл бұрын
I was so confused when he said that
@terrydavids9295
@terrydavids9295 7 жыл бұрын
That killed me
@Nico-bz5ll
@Nico-bz5ll 6 жыл бұрын
6
@DeeDee-mb2tp
@DeeDee-mb2tp 6 жыл бұрын
That gave me trust issues
@lightningsky7793
@lightningsky7793 8 жыл бұрын
Thank
@TheElla3103
@TheElla3103 11 жыл бұрын
3x2 is 6 not 15
@SuperJemser
@SuperJemser 5 жыл бұрын
Answer to 1st problem is x²+5x+6.... where did he get the 15 from???
@fire_bird-cr2ro
@fire_bird-cr2ro 5 жыл бұрын
what software are you using to write all this?
@a.s5983
@a.s5983 7 жыл бұрын
he said gday that means he is aussie
@adonaiyah2196
@adonaiyah2196 7 жыл бұрын
WELL READ
@tebogoamos1242
@tebogoamos1242 3 жыл бұрын
Giving me motivation to go back to school, im i right if i say (½)^2 =1/4 ?
@agustinmartinez1435
@agustinmartinez1435 5 жыл бұрын
Can you do algebraic fractions
@mariannabali3672
@mariannabali3672 5 жыл бұрын
2x3=15?????
@Knardsh
@Knardsh 7 жыл бұрын
where is the following video??
@tramhicks1215
@tramhicks1215 4 жыл бұрын
I understood it.
@odysyhd5308
@odysyhd5308 8 жыл бұрын
he ment to add out 2 and 3 to get 5 with an x
@user-yy3xd4vl8s
@user-yy3xd4vl8s 3 жыл бұрын
Your my god
@gracecc8376
@gracecc8376 3 жыл бұрын
Hi does anyone know why 'ab' first of all cancelled each other out and when expanding (a+b)squared they do not?
@lornxxxe7477
@lornxxxe7477 2 жыл бұрын
the thing is basically (positive)ab-ab= 0 (its like 1-(minus) 1 its zero . but for squared its because its (a+b)(a+b) we cant cancel them out cause there multiplying each other . I know its been a year since u commented lol
@nchaitu2003
@nchaitu2003 11 жыл бұрын
Very good
@ensiform
@ensiform 11 жыл бұрын
3 times 2 isn't 15!!
@pakcooking6821
@pakcooking6821 3 жыл бұрын
love from pak
@kathleendae9710
@kathleendae9710 8 жыл бұрын
what about RATIONAL EXPRESSIONS?😊 DAMN ITS SO DIFFICULT TO UNDERSTAND😭
@JBsVlog888
@JBsVlog888 2 жыл бұрын
(4X-1)² please...
@giapereira
@giapereira 8 жыл бұрын
Which year would you learn this? (approx)
@monsterjazzlicks
@monsterjazzlicks 8 жыл бұрын
Nine to ten years old??!!
@travis9031
@travis9031 7 жыл бұрын
12-14 usually
@1360200
@1360200 7 жыл бұрын
Dear all, does anyone know what would be the answer to: Y=(200/x)+400x. ? I appreciate any help. thanks
@justinsantos5751
@justinsantos5751 7 жыл бұрын
Hugo Martin to solve two variable equation, you must have two equation with the same variables.
@tiranasawrus5148
@tiranasawrus5148 2 жыл бұрын
Pretty sure that's a linear equation, plotting it on a graph may help
@monsterjazzlicks
@monsterjazzlicks 8 жыл бұрын
This now is just getting sooooooooo difficult ;-(
@abishamahendra
@abishamahendra 5 жыл бұрын
Isn't this the Difference of Perfect Squares and not Completing the Square? I'm after Completing the Square, which is basically doing the whole thing backwards.
@seanjohnston2453
@seanjohnston2453 Жыл бұрын
at 1min 15 secs you say: 3 times 2 which is 15......what????
@charlesshanice7
@charlesshanice7 6 жыл бұрын
The first question is wrong. (x+2)(x+3) =x^2 + 3x +2x +6 =x^2 + 5x + 6 But I don't know how you got =x^2 +5x + 15 Where did the 15 come from the equation.
@MH-hk5zz
@MH-hk5zz 5 жыл бұрын
True he got it wrong
@durragas4671
@durragas4671 5 жыл бұрын
He kept talking about how this rule is fine but he prefers doing it another way, then proceeds to do two different exercises but the same way...?
@strawberrycheesecake7193
@strawberrycheesecake7193 5 жыл бұрын
why are all maths channels aussie
@monsterjazzlicks
@monsterjazzlicks 8 жыл бұрын
So what does, please, a 'Quadratic Equation' actually mean?!
@alecmackintosh2734
@alecmackintosh2734 7 жыл бұрын
a quadratic equation is a equation that can always be represented or simplified to ax^2 + bx + c and if graphed will form a parabola
@monsterjazzlicks
@monsterjazzlicks 7 жыл бұрын
Alec Mackintosh Gee, I think its tome for me to give up on this! lol
@divyoroy9056
@divyoroy9056 5 жыл бұрын
3 times 2=6, not 15. Please make sure not to make this mistake again.
@sh9078
@sh9078 5 жыл бұрын
Lol the first question is wrong
@lineekelajason520
@lineekelajason520 7 жыл бұрын
its way too basic
@siddigbara6908
@siddigbara6908 7 жыл бұрын
Lineekela Jason
@Baghuul
@Baghuul 7 жыл бұрын
Your mom is basic.
@lineekelajason520
@lineekelajason520 7 жыл бұрын
Yeah shmhhhh
@Knardsh
@Knardsh 7 жыл бұрын
where is the following video??
How to solve Quadratic Equations by Completing the Square
6:46
Fast Algebra Trick - Multiply trinomials instantly!
11:53
tecmath
Рет қаралды 110 М.
Задержи дыхание дольше всех!
00:42
Аришнев
Рет қаралды 3,7 МЛН
Clown takes blame for missing candy 🍬🤣 #shorts
00:49
Yoeslan
Рет қаралды 46 МЛН
Finger Heart - Fancy Refill (Inside Out Animation)
00:30
FASH
Рет қаралды 28 МЛН
A teacher captured the cutest moment at the nursery #shorts
00:33
Fabiosa Stories
Рет қаралды 52 МЛН
Why do we "complete the square"?
9:50
MindYourDecisions
Рет қаралды 1,1 МЛН
Algebra - expanding and simplifying brackets
16:34
tecmath
Рет қаралды 438 М.
Algebra Trick - Multiply binomials and trinomials instantly!
12:05
Examples: A Different Way to Solve Quadratic Equations
40:05
LIVE by Po-Shen Loh
Рет қаралды 785 М.
Why π^π^π^π could be an integer (for all we know!).
15:21
Stand-up Maths
Рет қаралды 3,3 МЛН
Completing The Square Method and Solving Quadratic Equations - Algebra 2
31:55
The Organic Chemistry Tutor
Рет қаралды 3 МЛН
The SAT Question Everyone Got Wrong
18:25
Veritasium
Рет қаралды 12 МЛН
Algebra Tricks - Multiply binomials instantly!
16:56
tecmath
Рет қаралды 153 М.
Solve by Completing the Square: Step-by-Step Technique
7:40
PreMath
Рет қаралды 4 МЛН
Faster than a calculator | Arthur Benjamin | TEDxOxford
15:04
TEDx Talks
Рет қаралды 24 МЛН
Задержи дыхание дольше всех!
00:42
Аришнев
Рет қаралды 3,7 МЛН