How do you factor $x^3 + 216$ ?

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Answer 1 · 2015-09-25T23:13:12

Refer to explanation

Using the identity $a^3+b^3=(a+b)*(a^2-ab+b^2)$ and the fact that
$216=6^3$

we have that

$x^3+6^3=(x+6)*(x^2-6x+36)$

How do you factor x^3 + 216x^3 + 216?