SOLUTION: x^2-16 _______ x^2-4x Can someone show me how to work this problem. I need to see how to simplify

Algebra ->  Polynomials-and-rational-expressions -> SOLUTION: x^2-16 _______ x^2-4x Can someone show me how to work this problem. I need to see how to simplify      Log On


   

Question 128079: x^2-16
_______
x^2-4x
Can someone show me how to work this problem. I need to see how to simplify
Answer by ankor@dixie-net.com(22740) About Me  (Show Source):
You can put this solution on YOUR website!
%28%28x%5E2-16%29%29%2F%28%28x%5E2-4x%29%29
:
You should recognize that the numerator is the difference of squares
The denominator, you can factor out x:
%28%28x-4%29%28x%2B4%29%29%2F%28x%28x-4%29%29
:
Cancel the (x-4)'s and you have
%28%28x%2B4%29%29%2Fx