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OpenStudy (anonymous):
(y4 - 1) ÷ (y + 1)
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OpenStudy (asnaseer):
do you know the formula for the difference of two squares? i.e. \(a^2-b^2=...\)
OpenStudy (anonymous):
work with (y^4-1) = (y^2-1)(y^2+1) = (y-1)(y+1)(y^2+1)
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