Question

Factor completely: 2x2 − 6x − 20

Answer 1

2(x-5)(x+2)

Answer 2

2x^2 - 6x - 20


2(x^2 - 3x - 10)


2(x^2 - 5x+2x - 10)


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


2(x+2)(x-5)

So 2x^2 - 6x - 20 = 2(x+2)(x-5)