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OpenStudy (anonymous):
sqrt(x+64)-sqrt(x-16)=4 please help!
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ganeshie8 (ganeshie8):
start by squaring both sides
ganeshie8 (ganeshie8):
or maybe send one of the radicals to right side to make it simple
ganeshie8 (ganeshie8):
sqrt(x+64)-sqrt(x-16)=4 sqrt(x+64) = 4 + sqrt(x-16) square both sides
OpenStudy (anonymous):
I got -64?? It says its wrong
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