Answer
$12x\sqrt[3] { 2 x}$.
Work Step by Step
The given expression is
$=(3\sqrt[3] {4x^2})(2\sqrt[3] {4x^2})$
Use the product rule.
$=6\sqrt[3] {4x^2\cdot 4x^2}$
$=6\sqrt[3] {16x^4}$
$=6\sqrt[3] {2^3\cdot 2x^3\cdot x}$
$=6\sqrt[3] {2^3\cdot 2x^3\cdot x}$
$=6\cdot 2x\sqrt[3] { 2 x}$
Simplify.
$=12x\sqrt[3] { 2 x}$.
