As my College Algebra class prepares for the Complex Number section that will lead to being able to solve just about any quadratic equation, here's a link to a worksheet on simplifying radicals. We will do a few of the first problems together in class. Answers are given, too!
Free Radical Practice from Kuta Software
Tip: It may help to review prime factorization. See the Pencast on this on the right side of this webpage for a tutorial. You can even make up your own numbers like 220, 175, 330 then check your factors at www.WolframAlpha.com. I went to WolframAlpha and entered "Factor(220)". Click here to see what it did for me! I also show how to have WolframAlpha simplify the square root of 220 here.
There's also a Radicals pencast to the right of this webpage.
Friday, January 27, 2012
Wednesday, January 25, 2012
Free Math Problems with Feedback!
A reminder here about a wonderful free website supplied by Pearson Education. InteractMath.com contains thousands of math problems that provide immediate feedback and assistance. This is the free scaled-down version of MyMathLab.com. I am working on some tutorials on how to use InteractMath.com. It's very user-friendly, though. You can start by going to www.InteractMath.com, click on Enter, then choose from a ton of math books and get started!