Algebra 2 (1st Edition)

Published by McDougal Littell
ISBN 10: 0618595414
ISBN 13: 978-0-61859-541-9

Chapter 4 Quadratic Functions and Factoring - 4.5 Solve Quadratic Equations by Finding Square Roots - 4.5 Exercises - Mixed Review - Page 271: 56



Work Step by Step

$-7x-15\geq 6\qquad$ ...add $-15$ to each side. $-7x-15+15\geq 6+15\qquad$ ...simplify. $-7x\geq 21\qquad$ ...divide each part of the inequality with $(-7)$. ...dividing with a negative inverts the inequality sign. $x\leq-3$
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