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OpenStudy (anonymous):
multiply and simplify (√5-√8)(√5+√8) (√5)^2(√8)^2 25-16 = 9 please help is this correct?
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OpenStudy (anonymous):
oops 25-64=39 simplify???
OpenStudy (jamesj):
(√5-√8)(√5+√8) = √25 - √64 = 5 - 8 = -3
OpenStudy (anonymous):
Oh okay thanks so much!!!
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