Which method do you use to factor 3x(x-1)+4(x-1) ?

1 Answer
Nov 4, 2014

I'm not sure if this is a method, but
Distributive Property of multiplication over addition is involved.

For easier visualization, let's treat x - 1 as one variable, say y

y = x - 1


3x(x - 1) + 4(x - 1)

=> 3x(y) + 4(y)

=> (3x + 4)(y)

=> (3x + 4)(x - 1)