Question

X-1/x^2-x-20 give the equivalent numerator if the denominator is (x-5)(x+4)(x+3)

Answer 1

Explanation:

First, factor the denominator: (x-5)(x+4)

Since the denominator already has the two values, you only need to multiply it by (x+3), which means you need to multiply the numerator by (x+3):

(x-1)(x+3)/(x-5)(x+4)(x+3)

(x-1)(x+3) then simplifies to
`x^2+2x-3`