# Chapter 4 - Polynomials - 4.1 Exponents and Their Properties - 4.1 Exercise Set - Page 236: 44

$\dfrac{2n^{7-3}}{3}$

#### Work Step by Step

Using $\dfrac{a^x}{a^y}=a^{x-y}$, then the expression, $\dfrac{10n^7}{15n^3}$, simplifies to \begin{array}{l}\require{cancel} \dfrac{\cancel{5}\cdot2n^{7-3}}{\cancel{5}\cdot3} \\\\= \dfrac{2n^{7-3}}{3} .\end{array}

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