Trying to solve a math problem for class and not getting it? Mathway can help. On their site you can enter a math problem, and they'll try to solve it for you. They even give you the steps for solving the problem (since most math teachers want to see your work). They can solve problems in basic math, algebra, trigonometry, and calculus. Here's an example of one of their solutions to give you an idea just how useful this can be for solving math problems.

Sample math problem solution