# Chapter 4 - Polynomials - Review Exercises: Chapter 4: 10

$7^{10}x^{10}$

#### Work Step by Step

Using the laws of exponents, the given expression, $(7x)^8\cdot(7x)^2 ,$ simplifies to \begin{array}{l}\require{cancel} (7x)^{8+2} \\\\= (7x)^{10} \\\\= 7^{10}x^{10} .\end{array}

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