Answer
$-2xy^2\sqrt [3] {y}$
Work Step by Step
Rewrite the radicand as the product of factors such that you can take the cube root of certain factors:
$\sqrt [3] {-2^3 • x^3 • y^6 • y}$
Take the cube roots of terms to take them out from under the radical sign:
$-2 • x • y^2\sqrt [3] {y}$
Simplify the radical by multiplying the coefficients:
$-2xy^2\sqrt [3] {y}$