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## anonymous 5 years ago simplify the expression 5+(radical 7)/5-(radical 7)

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1. anonymous

Multiply by the conjugate of the denominator. $(5+\sqrt{7})/(5-\sqrt{7})*(5+\sqrt{7})/(5+\sqrt{7})$

2. anonymous

you should end up with $(32+10\sqrt{7})/18 = (16+5\sqrt{7})/9$

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