Which is a factor of x^2+7x-18

Question

Mathematics

Brennen

7 January, 16:06

Which is a factor of x^2+7x-18

+1

Answers (2)

Know the Answer?

Pedro · Answer 1

x^2+7x-18

Ask yourself:

What adds up to 7 but multiplies to - 18?

In this case:

9 and - 2 would be the answer.

9 * - 2=-18

9-2=7

Factor form:

(x-2) (x+9)

Final answer:

(x-2) (x+9)

Jaylyn Hubbard · Answer 2

factor (x^2+7x-18)

This question is simple

X^2 + 7x-18=0

So Factor is by crossing: (X+9) (X-2)

= X^2 - 2X + 9X-18

= X=2 or X=-9