# Chapter 5 - Review - Page 330: 62

$-12a^{2}b^{5}-28a^{2}b^{3}-4ab^{2}$

#### Work Step by Step

$-4ab^{2}(3ab^{3}+7ab+1)$ Distribute the $-4ab^{2}$. $-4ab^{2}(3ab^{3})-4ab^{2}(7ab)-4ab^{2}(1)$ Simplify. $-12a^{2}b^{5}-28a^{2}b^{3}-4ab^{2}$

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