Answer
$x=\frac{6}{7}$ or $x=1$
Work Step by Step
We simplify as follows:
$3x^{2}-20x=-4x^{2}-7x-6$
$7x^{2}-13x+6=0$
$(7x-6)(x-1)=0$
$7x-6=0$ or $x-1=0$
$7x=6$ or $x=1$
$x=\frac{6}{7}$ or $x=1$
Algebra: A Combined Approach (4th Edition)
by Martin-Gay, Elayn
Published by
Pearson
ISBN 10:
0321726391
ISBN 13:
978-0-32172-639-1
Chapter 6 - Section 6.6 - Solving Quadratic Equations by Factoring - Exercise Set - Page 458: 67
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