Factor
2\left(d+4\right)\left(d^{2}-4d+16\right)
Evaluate
2\left(d^{3}+64\right)
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2\left(64+d^{3}\right)
Factor out 2.
\left(d+4\right)\left(d^{2}-4d+16\right)
Consider 64+d^{3}. Rewrite 64+d^{3} as d^{3}+4^{3}. The sum of cubes can be factored using the rule: a^{3}+b^{3}=\left(a+b\right)\left(a^{2}-ab+b^{2}\right).
2\left(d+4\right)\left(d^{2}-4d+16\right)
Rewrite the complete factored expression. Polynomial d^{2}-4d+16 is not factored since it does not have any rational roots.
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