Question

Simplify the following:
x^2-16/x^2+x-12

Answer 1

Well, in this case it is a function correct? You can take the derivative of it which would be!
(2x)(x^2+x-12)-(x^2-16)(2x+1)/(x^2+x-12)^2

Answer 2

THEN simplify that :D

Answer 3

x-4/x-3

Answer 4

first factorize (x-4)(x+4)/(x+4)(x-3)

then cancel out and your left with (x-4)/(x-3)