Question

Simplify the rational expression. State any excluded values.
x^2-36/6-x

Answer 1

a^2 - b^2 = (a-b)(a+b)

can you do something with the numerator now ?

Answer 2

im just confused im not really good at math

Answer 3

ok so using :
a^2 - b^2 = (a-b)(a+b)
we can say
a^2 = x^2
and b^2 = 36
take only positive values so it means that b = 6
and a = x

so.. what is (a-b)(a+b) ?