00:01
So to find the product of these two matrices, first we're going to take this first row right here and multiply it by the first column of this one.
00:11
Okay, so we're going to take the three and multiply it by the minus seven.
00:16
So we're going to have three times minus seven.
00:22
And then we're going to add to that the 10 times eight.
00:28
10 times 8.
00:33
And that is equal to, so we have minus 21 plus 80.
00:40
Okay, so minus 21 plus 80, it's going to be 59.
00:46
All right.
00:48
And now we have to take this first row right here and multiply it by the second column of the second matrix.
00:56
Okay, so we're going to take the three and multiply it by the two.
01:02
And then add to that the 10 multiply by the 4.
01:09
So in this case, three times two is six, plus 10 times four is 40.
01:14
So we're gonna have six plus 40, so 46...