## Introductory Algebra for College Students (7th Edition)

Published by Pearson

# Chapter 5 - Section 5.4 - Polynomials in Several Variables - Exercise Set - Page 376: 72

#### Answer

$x^3y^4+x^2y^2+x^2+xy^4+y^2+1$

#### Work Step by Step

Using the Distributive Property, the product of the given expression, $(x^2+1)(xy^4+y^2+1) ,$ is \begin{array}{l}\require{cancel} x^2(xy^4)+x^2(y^2)+x^2(1)+1(xy^4)+1(y^2)+1(1) \\\\= x^3y^4+x^2y^2+x^2+xy^4+y^2+1 .\end{array}

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