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 390: 33

Answer

$-1,\dfrac{2}{5}$

Work Step by Step

Given: $x(8x+1)=3x^2-2x+2$ or, $5x^2+3x-2=0$ Need to use factorization to solve the quadratic equation. This can be factorized as follows: $5x^2+5x-2x-2=0$ or, $(x+1)(5x-2)=0 $ Now, $x+1=0$ and $5x-2=0$ This implies $x=-1,\dfrac{2}{5}$
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