Elementary Technical Mathematics

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

Chapter 5 - Test - Page 232: 12



Work Step by Step

We multiply each term of the first polynomial by each term of the second polynomial as follows: $$ (4a + 6)(a - 5)= 4a (a - 5)+ 6(a - 5)\\ =4a^2-20a+6a-30\\ =4a^2-14a-30 .$$
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