# Appendix A - Practice - Page 971: 2

Practice 2 (Answer) $(\,-3x^2y^7)\,(\,5xy^6)\,$ =$-15x^3y^{13}$

#### Work Step by Step

Practice 2 (Solution) $(\,-3x^2y^7)\,(\,5xy^6)\,$ =$-3\cdot5x^2x^1y^7y^6$ =$-15x^3y^{13}$ (Product rule)

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