SOLUTION: Please help with the following? Rationalize the denominator. Assume that all expressions under radicals represent positive numbers. Simplify. type an exact answer, using radical

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Question 376836: Please help with the following?
Rationalize the denominator. Assume that all expressions under radicals represent positive numbers. Simplify. type an exact answer, using radicals as needed.
(√c-√d)/(√c+√d)


Answer by ankor@dixie-net.com(22740) About Me  (Show Source):
You can put this solution on YOUR website!
Multiply by the conjugate of the denominator over itself
%28sqrt%28c%29-sqrt%28d%29%29%2F%28sqrt%28c%29%2Bsqrt%28d%29%29 * %28sqrt%28c%29-sqrt%28d%29%29%2F%28sqrt%28c%29-sqrt%28d%29%29 = %28c+-+2sqrt%28cd%29+%2B+d%29%2F%28c+-+d%29