## Elementary Technical Mathematics

Published by Brooks Cole

# Chapter 5 - Section 5.5 - Multiplication of Polynomials - Exercise - Page 225: 2

#### Answer

$3a^2-15$

#### Work Step by Step

By multiplying each term by 34, and then adding the products, we have $$3(a^2-5)=3(a^2)-3(5)=3a^2-15 .$$

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