n(n-1)(n-2)=420

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Solution for n(n-1)(n-2)=420 equation: 



n(n-1)(n-2)=420

We move all terms to the left:

n(n-1)(n-2)-(420)=0

We multiply parentheses ..

n(+n^2-2n-1n+2)-420=0

We multiply parentheses

n^3-2n^2-1n^2+2n-420=0

We do not support enpression: n^3

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