00:01
These problems here where we're given a binomial, 2x minus, sorry, 7x minus 2y, all to the power of 15, and we're asked for the seventh term right here.
00:13
Okay, so we use some terms on the front.
00:16
We get to the seventh term, and it's actually going to be 15, choose 6.
00:19
We know that our second parentheses, our negative 2y, is also going to be to the power 6.
00:25
Okay, that means our first parentheses, the 7x, must be whatever we need.
00:31
To get to 15 starting at 6.
00:33
Well, we know that 6 plus 9 will give us 15.
00:36
So this is the term we want.
00:39
We can just analyze this some more now.
00:42
Okay, so we'll start off by calculating the 15 to 6.
00:49
15 to 6...