Intermediate Algebra for College Students (7th Edition)

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

Chapter 6 - Section 6.4 - Division of Polynomials - Exercise Set - Page 446: 81

Answer

$(-\infty,-\frac{1}{2})\cup(\frac{7}{2},\infty)$.

Work Step by Step

The given expression is $\Rightarrow |2x-3|\gt4$ Rewrite the inequality without absolute value bars. $\Rightarrow 2x-3\lt-4$ or $2x-3\gt4$ Add $3$ to all parts. $\Rightarrow 2x-3+3\lt-4+3$ or $2x-3+3\gt4+3$ Simplify. $\Rightarrow 2x\lt-1$ or $2x\gt7$ Divide all parts by $2$. $\Rightarrow \frac{2x}{2}\lt\frac{-1}{2}$ or $\frac{2x}{2}\gt\frac{7}{2}$ Simplify. $\Rightarrow x\lt-\frac{1}{2}$ or $x\gt\frac{7}{2}$ The solution set is less than $-\frac{1}{2}$ or greater than $\frac{7}{2}$. The interval notation is $(-\infty,-\frac{1}{2})\cup(\frac{7}{2},\infty)$.
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