Question

Factor 3x 2 - 15x - 42.

Answer 1

it's gunna be 3(x-7)(x+2)
if you come across another problem like this use GCF method "Greatest Common Factor."

Answer 2

-if u factor u take the 3(x-7)(x+2)
u get 3x^2-21x+6x-42
3x^2-15x-42

Answer 3

Thanks