SOLUTION: perform the indicated operation 5/x^2-49 + 2x+1/x^2+7x

Algebra ->  Polynomials-and-rational-expressions -> SOLUTION: perform the indicated operation 5/x^2-49 + 2x+1/x^2+7x      Log On


   



Question 170072: perform the indicated operation
5/x^2-49 + 2x+1/x^2+7x

Answer by ankor@dixie-net.com(22740) About Me  (Show Source):
You can put this solution on YOUR website!
5%2F%28%28x%5E2-49%29%29 + %28%282x%2B1%29%29%2F%28%28x%5E2%2B7x%29%29
Factor
5%2F%28%28x-7%29%28x%2B7%29%29 + %28%282x%2B1%29%29%2F%28x%28x%2B7%29%29
The common denominator: x(x-7)(x+7)
%285x+%2B+%28x-7%29%282x%2B1%29%29%2F%28%28x%28x-7%29%28x%2B7%29%29%29 = %285x+%2B+%282x%5E2-13x-7%29%29%2F%28x%28x-7%29%28x%2B7%29%29 = %282x%5E2-8x-7%29%2F%28x%28x-7%29%28x%2B7%29%29