We can eliminate radicals by taking both sides of an inequality to the same power (recall that the inequality isn't changed if both sides are positive and we square them). However, as when we solve equations we must check our answers for extraneous roots.
Be sure you've gone through each step in the examples above before doing these. Once you've worked them until you're sure that you understand them, go on to the next section. There are more problems of this type in the section test at the end of the section.
Note that you can get a new version of the practice problem by clicking the "Refresh" button at the bottom of the problem.