# Chapter 5 - Exponents and Polynomials - Chapters 1-5 Cumulative Review Problem Set - Page 233: 19

$-8x^{6}y^{15}$

#### Work Step by Step

We simplify this expression by raising each term in the expression to the power of $3$: $(-2x^{2}y^{5})^{3}$ =$(-2)^{3}\times(x^{2})^{3}\times (y^{5})^{3}$ =$(-8)\times(x^{6})\times (y^{15})$ =$-8x^{6}y^{15}$

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