Answer
$x^{\frac{2}{3}}+4x^{\frac{1}{3}}-12$
Work Step by Step
Simplify. $(x^{\frac{1}{3}}-2)(x^{\frac{1}{3}}+6)$
or, $=x^{\frac{1}{3}}x^{\frac{1}{3}}+6x^{\frac{1}{3}}-2x^{\frac{1}{3}}-12$
or, $=x^{\frac{1}{3}+{\frac{1}{3}}}+4x^{\frac{1}{3}}-12$
or, $=x^{\frac{2}{3}}+4x^{\frac{1}{3}}-12$
