Question

-6ab^2+42a^2
is it 2(-3ab^2+21a^2) or 6(-ab^2+7a^2)

Answer 1

you can rewrite this as:

6a(7 -b^2)

Answer 2

i have to do it in factorized form

Answer 3

all three options are in factorized form

Answer 4

@Jonask