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

asked Mar 16, 2022 207k views

14 votes

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

x^2 + 2x + 3
x^2 + 2x - 3
x^2-3

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10 votes

Answer:

x^2+2x-3

Explanation:

Note that
x^2-x-20=(x-5)(x+4) , so, if the denominator is
(x-5)(x+4)(x+3) , we need to multiply the numerator by
(x+3) . And
(x-1)(x+3)=x^2+2x-3 .

Oliver Tynes answered Mar 20, 2022

4.9k points

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