## Elementary Algebra

Published by Cengage Learning

# Chapter 5 - Exponents and Polynomials - 5.4 - Dividing by Monomials - Problem Set 5.4 - Page 212: 18

#### Answer

$-6y^9$

#### Work Step by Step

RECALL: (i) $\dfrac{a^m}{a^n} = a^{m-n}$ (ii) $a^0=1, a\ne0$ Divide the coefficients, and then use the rules above to obtain: $=-6x^{4-4}y^{9} \\=-6(x^{0})y^9 \\=-6(1)y^9 \\=-6y^9$

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