SOLUTION: Factor completely: 16x^3-5-20x+4x^2

Algebra ->  Polynomials-and-rational-expressions -> SOLUTION: Factor completely: 16x^3-5-20x+4x^2      Log On


   

Question 73717: Factor completely: 16x^3-5-20x+4x^2
Answer by galactus(183) About Me  (Show Source):
You can put this solution on YOUR website!
This isn't bad. Did you give it a go?.
16x%5E3%2B4x%5E2-20x-5
Group:
%2816x%5E3%2B4x%5E2%29-%2820x%2B5%29
Common factors of each:
4x%5E2%284x%2B1%29-5%284x%2B1%29
%284x%5E2-5%29%284x%2B1%29