Elementary Technical Mathematics

Published by Brooks Cole
ISBN 10: 1285199197
ISBN 13: 978-1-28519-919-1

Chapter 5 - Section 5.5 - Multiplication of Polynomials - Exercise - Page 226: 46

Answer

$18x^2+9x-35$

Work Step by Step

We multiply each term of the first polynomial by each term of the second polynomial. Then we add the products, as follows $$ (3x + 5)(6x -7)=3x (6x -7)+ 5(6x -7)\\ =18x^2-21x+30x-35=18x^2+9x-35 .$$
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