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Asked by
oshoke
what is x square - y square over x + y
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Answered by
oobleck
well, x^2-y^2 = (x+y)(x-y)
so ...
Answered by
Benedict
I mean x raise to power 2- y raise power 2 divided by x+y
Answered by
oobleck
so, now you have
(x+y)(x-y) / (x+y)
NOW do you see?
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