n^6+28n^3+27=0

Use A Temporary Substitution To "Reduce" It To A Quadratic Equation In Standard Form
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1 Answer

Let x=n3 then we have x2+28x+27=(x+27)(x+1), making x=-27 or -1.

So n3=-1 or -27, making n=-1 or -3.

by Top Rated User (1.2m points)

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