00:01
Okay, so for this question we're going to be multiplying the binomials, the quantity x minus 4 and the quantity x plus 2.
00:06
And we're going to be doing this using the foil method standing for first outer inner last so we can start by multiplying the first terms together in this case.
00:17
That's going to be x and x then we'll multiply the outer terms of each binomial together.
00:22
That'll be x and 2 next we'll multiply the inner terms together which will be negative 4 in x and then finally we'll multiply the last terms together in this case that's negative 4 and 2.
00:32
Okay, so we can go ahead and get started.
00:34
So we'll do the first terms.
00:36
That's going to be x times x, which will give us x squared.
00:39
Remember just to add together the exponents when we're doing that.
00:43
The outer terms, we have x and 2.
00:45
So x times 2 is going to give us 2x.
00:49
Then we have the inner terms together, negative 4 and x that's going to give us negative 4x.
00:56
And then finally we have the outer terms...