Intermediate Algebra for College Students (7th Edition)

Published by Pearson
ISBN 10: 0-13417-894-7
ISBN 13: 978-0-13417-894-3

Chapter 5 - Section 5.7 - Polynomial Equations and Their Applications - Exercise Set - Page 391: 50


$\bf graph(a)$

Work Step by Step

Given: $x^2+2x-8=0$ Need to use factorization to solve the quadratic equation. This can be factorized as follows: $x^2-2x+4x+8=0$ or, $(x-2)(x+4)=0$ Now $x-2=0$ and $x+4=0$ Roots are $x=2,-4$. These values are represented by $\bf graph(a)$
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