Paul,
Thanks for those links. I was wondering where a directory was for all those examples. I've hit a couple of them through Google, but I never knew where the directory was. (Now of course I see that there's a link at the top of each example.)
And thanks for the work too. That catalog will be a great resource. I've bookmarked it!
Alex
WeBWorK Problems
Algebra problems: radicals, factorizing, simplifying
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