SOLUTION: Factor the polynomial completely,clearly show the GCF. 81x^4-16 I got this... (9x^2-4)(9x^2-4) (3x-2)(3x+2)(3x-2)(3x+2)

Algebra ->  Polynomials-and-rational-expressions -> SOLUTION: Factor the polynomial completely,clearly show the GCF. 81x^4-16 I got this... (9x^2-4)(9x^2-4) (3x-2)(3x+2)(3x-2)(3x+2)      Log On


   

Question 78116: Factor the polynomial completely,clearly show the GCF.
81x^4-16
I got this...
(9x^2-4)(9x^2-4)
(3x-2)(3x+2)(3x-2)(3x+2)
Answer by 303795(602) About Me  (Show Source):
You can put this solution on YOUR website!
81x%5E4-16
Difference of squares
%289x%5E2%2B4%29%289x%5E2-4%29
Factor the second factor as a difference of squares again.
%289x%5E2%2B4%29%283x%2B2%29%283x-2%29