SOLUTION: Im am trying to solve for the square root of x^2-14x+49. It has the square root sign over it. Do i need to simplify and then set to zero. x+7 and x-7..

Algebra ->  Rational-functions -> SOLUTION: Im am trying to solve for the square root of x^2-14x+49. It has the square root sign over it. Do i need to simplify and then set to zero. x+7 and x-7..      Log On


   

Question 318069: Im am trying to solve for the square root of x^2-14x+49.
It has the square root sign over it. Do i need to simplify and then set to zero. x+7 and x-7..
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!
Hint: x%5E2-14x%2B49=x%5E2-7x-7x%2B49=x%28x-7%29-7%28x-7%29=%28x-7%29%28x-7%29=%28x-7%29%5E2 or simply x%5E2-14x%2B49=%28x-7%29%5E2