00:03
Let's expand this binomial, and there are a few patterns that we need to follow.
00:08
The pattern in the coefficients is that they're going to be the numbers from the fourth row of pascal's triangle.
00:13
So we're going to have 1, 4, 6, 4, 1.
00:19
And then the powers on m are going to descend, starting with m to the 4th, and then m to the 3rd, m squared, m to the 1st, and then m to the 0.
00:31
But we don't usually write m to the 0, we just leave that out.
00:36
M to the 0 is just 1.
00:39
And then we're going to see the powers on b ascend, and so the first one is going to, sorry, it's a p, not a b...