Question

Find Derivative of ((x+1)(x+2))/((x-1)(x-2))

Answer 1

First expand everything

Answer 2

(x^2 + 3x + 2)/(x^2 - 3x +2)

Answer 3

finding x values?

Answer 4

use the quotient rule after expanding it,

Answer 5

Now you can use the quotient rule http://mathworld.wolfram.com/QuotientRule.html
Or rewrite it as \[\left( x ^{2}+3x+2 \right)\left( x ^{2}-3x+2 \right)^{-1}\] and use chain rule http://mathworld.wolfram.com/ChainRule.html

Answer 6

Oh. Quotient rule. Right. ._.

Answer 7

don't be scared of the quotient rule

Answer 8

Heh thanks