SOLUTION: Simplify by rationalizing the denominator. a/square root 10 plus square root 2. I know I have to multiply but I forget what I have to do with the a factor.

Algebra ->  Polynomials-and-rational-expressions -> SOLUTION: Simplify by rationalizing the denominator. a/square root 10 plus square root 2. I know I have to multiply but I forget what I have to do with the a factor.      Log On


   

Question 826060: Simplify by rationalizing the denominator. a/square root 10 plus square root 2. I know I have to multiply but I forget what I have to do with the a factor.
Answer by josgarithmetic(39630) About Me  (Show Source):
You can put this solution on YOUR website!
a%2F%28sqrt%2810%29%2Bsqrt%282%29%29 or did you want a%2Fsqrt%2810%29%2Bsqrt%282%29?

If the first one, take advantage of the Difference Of Squares.

%28a%2Asqrt%2810%29-a%2Asqrt%282%29%29%2F%2810%2B2%29, a step was skipped, expecting you recognize the step;