Question

Simplify the expression. (x^2 - 9)/(x^2 + 2x - 15)

A
(x - 1)/(x - 6)
B
9/(15 - 2x)
C
3/(2x + 5)
D
(x + 3)/(x + 5)

Answer 1

We have

`(x^2-9)/(x^2+2x-15)`

`(\left(x+3\right)\left(x-3\right))/(x^2+2x-15)`

`(\left(x+3\right)\left(x-3\right))/(\left(x-3\right)\left(x+5\right))`

`(x+3)/(x+5)`

∴The answer is D