00:01
So we are going to perform the indicated operation of the following expression, negative 9m, parentheses, 2m squared, plus 3m minus 1, close parentheses.
00:16
The parentheses here are functioning as a multiplication symbol, and they're also functioning as a grouping symbol.
00:23
So what we know is that this entire expression here is being grouped together, and we want to more.
00:30
Multiply that entire group by negative 9m.
00:35
And so the way that we're going to multiply that entire group by negative 9m is by applying the distributive property of multiplication over addition.
00:45
So i'm going to distribute the negative 9m, which with each one of these terms here.
00:51
So the negative 9m is going to multiply by the first term, the second term, and also the third term.
00:58
So i'm going to start by taking, negative 9m and multiplying it by 2m squared.
01:08
Then i'm going to take the negative 9m and multiply it by the positive 3m.
01:18
And finally i'm going to take the negative 9m and multiply it by the negative 1.
01:26
So now i'm going to perform each of these multiplications.
01:30
So when we multiply negative 9m times 2m squared, we're going to find that negative 9 times 2 is negative 18...