Algebra: A Combined Approach (4th Edition)

Published by Pearson
ISBN 10: 0321726391
ISBN 13: 978-0-32172-639-1

Chapter 11 - Review - Page 829: 18

Answer

$x=1, 9/4$

Work Step by Step

$(2x-3)^2=x$ $(2x-3)(2x-3)=x$ $2x*2x+2x*-3+(-3)(2x)+(-3)(-3)=x$ $4x^2-6x-6x+9=x$ $4x^2-12x+9=x$ $4x^2-12x+9-x=x-x$ $4x^2-13x+9=0$ $a=4$, $b=-13$, $c=9$ $x=(-b±\sqrt {b^2-4ac})/2a$ $x=(-(-13)±\sqrt {(-13)^2-4*4*9})/2*4$ $x=(13±\sqrt {169-144})/8$ $x=(13±\sqrt {25})/8$ $x=(13±5)/8$ $x=(13+5)/8$ $x=18/8$ $x=9/4$ $x=(13+5)/8$ $x=(13-5)/8$ $x=8/8$ $x=1$
Update this answer!

You can help us out by revising, improving and updating this answer.

Update this answer

After you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.