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OpenStudy (anonymous):
Rationalize the denominator & simplify: square root7-square root 2/square root 7 + square root 2
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OpenStudy (lucaz):
you have to use the difference of squares, multiply the numerator and denominator by (sqrt7-sqrt2)
OpenStudy (anonymous):
\[1/5\left( 9-2\sqrt{14} \right)\] does that look right?
OpenStudy (lucaz):
sorry, I was checking my question
OpenStudy (lucaz):
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