Question

Identify the factors of x2 − 8x − 20.

Answer 1

\[=x^2+2x-10x-20\]\[=x(x+2)-10(x+2)\]\[=(x-10)(x+2)\]

Answer 2

x^2 - 10x + 2x - 20
(x^2 -10x) + (2x -20)
x(x - 10) + 2(x- 10)
(x + 2)( x- 10)