Question

which of the binomial below is a factor of this trinomial? x^2+5x-36 A) x^2 +5 B) x+9 C) x-9 D) x-5 please help :)

Answer 1

Answer:

(X+9)

Solution,

${x}^{2} + 5x - 36 \\ = {x}^{2} + (9 - 4)x - 36 \\ = {x}^{2} + 9x - 4x - 36 \\ = x(x + 9) - 4(x + 9) \\ = (x + 9)(x - 4)$

hope this helps...

Good luck on your assignment..

Answer 2

Answer:

D

Step by step:

X^2 + 5x - 36 = 0
(x-4)(x+9) = 0