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OpenStudy (anonymous):
ra + 2ry ________ ra - 2ry rationlize the denominator and simplize
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OpenStudy (gudden):
for rationalizing... the denominator wildfire95... multiply it and the numerator with ra+2ry give it a try...:D
OpenStudy (jdoe0001):
ra+2ry <--- otherwise known as the \(\bf conjugate\) of ra-2ry
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