Factor
\left(3y+4\right)\left(9y^{2}-12y+16\right)
Evaluate
27y^{3}+64
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\left(3y+4\right)\left(9y^{2}-12y+16\right)
Rewrite 64+27y^{3} as \left(3y\right)^{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). Polynomial 9y^{2}-12y+16 is not factored since it does not have any rational roots.
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