SOLUTION: I am stuck on this problem. I know the idea behind it but I cannot see the solution. I believe the common factor is 4 but it does not pan out.Can someone please show me step by ste

Algebra ->  Polynomials-and-rational-expressions -> SOLUTION: I am stuck on this problem. I know the idea behind it but I cannot see the solution. I believe the common factor is 4 but it does not pan out.Can someone please show me step by ste      Log On


   

Question 470269: I am stuck on this problem. I know the idea behind it but I cannot see the solution. I believe the common factor is 4 but it does not pan out.Can someone please show me step by step how to solve this? Help!!!
Factor completely. 4x^4-20x^3+28x^2.
Answer by nerdybill(7384) About Me  (Show Source):
You can put this solution on YOUR website!
4x^4-20x^3+28x^2
factoring out a 4:
4(x^4-4x^3+7x^2)
factoring out x^2:
(4x^2)(x^2-4x+7)