Question

how did 0=(x+1)/(x^2+1) became x=-2?

Answer 1

ECE FTW!!

Answer 2

x = -1

Answer 3

look, (x+1)/(x^2+1)=0
as the denominator is always positive, you can equate it with 0..
so x+1=0.. that would give you x=-1 and not x=-2..

Answer 4

ok thanks a lot :)

Answer 5

You're welcome.