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OpenStudy (anonymous):
need to find 5 solutions to the following problem.
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OpenStudy (anonymous):
\[y ^{5}-81y=0\]
OpenStudy (anonymous):
y(y^4 - 81) = 0 y(y^2 + 9)(y^2 - 9) = 0 y(y^2 + 9)(y + 3)(y - 3) = 0 \[y = 0, \pm 3, \pm 3i\]
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