1. ## Factorizing

$(1) 12x^3-3xy^2$
Thought it factored out to get $3x(4x^2-y^2)$
but I got it wrong... so whats the write way?

2. Originally Posted by purplec16
$(1) 12x^3-3xy^2$
Thought it factored out to get $3x(4x^2-y^2)$
but I got it wrong... so whats the write way?
you didn't finish ... $(4x^2-y^2)$ is also factorable

3. ## Oh...

Thanks, my mistake... so it would be $3x(2x+y)(2x-y)$