How To: Write rational expressions in lowest terms

In arithmetic, the simplest expression is far preferred to the long eye-boggling one. Stop making your expressions painful optical illusions by watching this tutorial on how to write rational expressions in the lowest terms.

By factoring and then canceling out like expressions, you'll turn eye vomit into gleaming math geek bliss. When the two expressions in the video are simplified, you'll also learn about the domain of each.