Question

If x – 10 is a factor of x2 – 8x – 20, what is the other factor?

Answer 1

Explanation:

x²-8x-20

=x²-10x+2x-20

=x(x-10)+2(x-10)

=(x-10)(x+2)

second factor is x+2

Answer 2

(x-10)(x+2)

Explanation:

x^2 – 8x – 20

Factor

What 2 numbers multiply to -20 and add to -8

-10 *2 =-20

-10+2 = -8

(x-10)(x+2)