# Math Help - Factoring Polynomials

1. ## Factoring Polynomials

Hey there,

I'm new here, and am having some trouble with factoring. I have already done quadratic trinomials but am having a lot of trouble figuring out polynomials.

Here is one of the questions:

16x³ - 48x² - 9x + 27
Any help would be much appreciated.

Thanks,
Mike

2. Originally Posted by MikeMcC
Hey there,

I'm new here, and am having some trouble with factoring. I have already done quadratic trinomials but am having a lot of trouble figuring out polynomials.

Here is one of the questions:

16x³ - 48x² - 9x + 27
Any help would be much appreciated.

Thanks,
Mike
factor by grouping

$(16x^3-48x^2)+(-9x+27)=$
$16x^2(x-3)-9(x-3)=(x-3)(16x^2-9)=(x-3)(4x-3)(4x+3)$

3. Hi Mike, you should consider the factor theorem in this problem.

Factor theorem - Wikipedia, the free encyclopedia

Your constant term is 27, so try the theorem with its factors

4. Cool, thanks a lot guys. Doesn't take too long to get an answer around here at all does it? This helps a lot!!