Why is there EVP of demonic geese at 0:57?

There is no point in looking at the 2nd problem. The answer comes out incorrect due to multiplying 4(x-1) and 2(x+1). (If That Is Even Correct)

Why is it that when you distributed the 4 to -1 it becomes -1? and the 2 to the 1 is equals 1?? Why is that so?

You didnt distribute the 2 to the 1 or the 4 to the 1 in your numerators, but other than that thanks!

are there people shouting in the backround or am I crazy

2(x+1)=2x+2 not 2x+1

2 times