Question

Which is a factor of 2x^2+ 8x – 90 ?

Answers: x + 9
x – 15
x + 2
x – 4

Answer 1

A

Answer 2

A for apple.

Answer 3

2x^2+ 8x – 90



2(x^2+4x-45)



2(x^2-5x+9x-45)



2(x(x-5)+9(x-5))



2(x+9)(x-5)


So the answer is choice A