Functions Modeling Change: A Preparation for Calculus, 5th Edition

Published by Wiley
ISBN 10: 1118583191
ISBN 13: 978-1-11858-319-7

Chapter 3 - Quadratic Functions - Exercises for Skills for Factoring - Page 135: 80

Answer

$$x=4,\:x=-\frac{3}{4}$$

Work Step by Step

Solving the equation, we find: $$ x\left(4x+3\right)-4\left(4x+3\right) \\ \left(4x+3\right)\left(x-4\right) \\ x=4,\:x=-\frac{3}{4}$$
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