Tuesday, January 13, 2015

College Algebra, Chapter 1, 1.7, Section 1.7, Problem 48

Solve the inequality 1|2x3|5. Express the answer using interval notation.


1|2x3|515|2x3|Divide by 5 and multiply |2x3| on each side

We have,


2x315and(2x3)15Divide each side by -12x315and2x315Add 32x95and2x75Divide by 2x910andx710


The solution set is (,710)(910,)

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