Algebra 1: Common Core (15th Edition)

Published by Prentice Hall
ISBN 10: 0133281140
ISBN 13: 978-0-13328-114-9

Chapter 9 - Quadratic Functions and Equations - 9-7 Linear Quadratic, and Exponential Models - Practice and Problem-Solving Exercises - Page 594: 32


$x=0.5$ or $x=-1.5$

Work Step by Step

We are given: $4x^2+4x-3=0$ Use the quadratic formula. $x=\frac{-4+\sqrt 4^2-4.4.(-3)}{2.4}$ $x=\frac{-4 \pm \sqrt 64}{8}$ $x=\frac{-1\pm 2}{2}$ $x=\frac{-1+2}{2}$ or $x=\frac{-1-2}{2}$ $x=0.5$ or $x=-1.5$
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