Question

$-y(-3y^{2}+2y-7)$

Explanation:

Step1: Distribute $-y$ to each term

$-y \times (-3y^2) + (-y) \times 2y + (-y) \times (-7)$

Step2: Calculate each product

$3y^3 - 2y^2 + 7y$

Answer:

$3y^3 - 2y^2 + 7y$