Question

What is the factored form of this polynomial. x2 + 5x − 36

A. (x − 4)(x − 9)
B. (x − 4)(x + 9)
C. (x − 5)(x + 8)
D. (x + 4)(x + 9)

Answer 1

(x+9)(x-4)

Explanation:

x^2 + 5x − 36

What two numbers multiply to -36 and add to 5

9*-4 = -36

9+-4 = 5

(x+9)(x-4)