Question

If x = -3 evaluate the following expression
(x-2)(x+9)
________
x(x+5)

Answer 1

Explanation:

you have to substitute x with -3, so where you see x in the equation you write a -3 and calculate

`((x-2)(x+9))/(x(x+5)) = ((-3-2)(-3+9))/(-3(-3+5)) = (-5*6)/(-3*2) =(-5)/(-1) =5`