Question

Factor completely: 3bx2 − 9x3 − b + 3x

Answer 1

Right, I take it for -9x^3+3bx^2+3x-b=0 I guess?

Answer 2

So, here's what I do. -3x(3x^2-1) + b( 3x^2-1) = 0
=> (b-3x)(3x^2-1)=0

Answer 3

By now, the answer should be obvious.

Answer 4

@NeetziD

If we are factoring, then why set the expression equal to zero as if we were finding the roots? Would the solution not end here: --> (b-3x)(3x^2-1)

>>Factor completely: 3bx2 − 9x3 − b + 3x

Answer 5

@Directrix Sorry... took it for a equation. =P didn't notice the factor bit... dumbed down there

Answer 6

Hey, no need to be sorry about anything. I was just asking. And, on that open cone question the Asker said is wrong, I got the same thing you did.