SOLUTION: Reduce to one term with a positive rational denominator? (3-x) / (2+ sqrt7) ? Any help? Thank you so much!

Algebra ->  Polynomials-and-rational-expressions -> SOLUTION: Reduce to one term with a positive rational denominator? (3-x) / (2+ sqrt7) ? Any help? Thank you so much!      Log On


   

Question 896062: Reduce to one term with a positive rational denominator?
(3-x) / (2+ sqrt7) ?
Any help? Thank you so much!
Answer by josgarithmetic(39630) About Me  (Show Source):
You can put this solution on YOUR website!
Multiply the rational expression by %282-sqrt%287%29%29%2F%282-sqrt%287%29%29=1, which in doing allows the advantage of DIFFERENCE OF SQUARES.