Question

HELP MEEE

Factor x2 + x − 20.

(x − 2)(x + 10)
(x + 2)(x − 10)
(x − 4)(x + 5)
(x + 4)(x − 5)

Answer 1

`(x-4)(x+5)=x^2+x-20`

Explanation:

`(x*x)+(x*5)+(-4*x)+(-4*5)=x^2+5x+-4x+-20`

`x^2+5x+-4x+-20=x^2+(5-4)x-20`

`x^2+(5-4)x-20=x^2+x-20`

Answer 2

C, (x-4)(x+5)

Explanation:

when u simplify the equetion (x-4)(x+5)

we get x2 + z +20