Question

Which of the following is the correct factorization of the trinomial below?

-7x² - 5x+18
OA. -1(7x-9)(x+2)
OB. (-7x-9)(x+2)
C. (-7x+9)(x-2)
OD. -7(x-6)(x+1)
SUDMT

Answer 1

(-7x + 9)(x+2)

Explanation:

-7x^2 - 5x + 18

Product = -126

Sum = -5
Factors (-14, 9)

-7x^2 - 14x + 9x + 18

-7x(x + 2) +9(x + 2)

(-7x + 9)(x + 2)