College Algebra (11th Edition)

Published by Pearson
ISBN 10: 0321671791
ISBN 13: 978-0-32167-179-0

Chapter R - Section R.3 - Polynomials - R.3 Exercises: 45

Answer

28$r^{2}$ + r - 2

Work Step by Step

1. FOIL (4r - 1)(7r + 2) = 4r(7r) + 4r(2) - 1(7r) - 1(2) 2. Multiply 28$r^{2}$ + 8r - 7r - 2 3. Add like terms. 28$r^{2}$ + r - 2
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