How do I use the the binomial theorem to expand #(t + w)^4#?
First, you should get to know Pascal's triangle. Here's a small portion of it up to 6 lines. Basically you're just adding the numbers that are beside each other, then writing the sum below them. (For example,
Okay, so take a look at the triangle. The numbers in each line are the coefficients of the terms when a binomial is raised to a certain power. The first line is for
Now, for the first term, the exponent of the first variable