00:01
So the question wants us to simplify the algebraic expression that we have up here, which is 2 times a plus b squared plus 5 times a plus b minus 3.
00:10
And so i think the easiest way to go about doing this problem is setting a plus b equal to y and substituting y in to the expression up here.
00:24
So when we do this, we'll have 2y squared plus 5y.
00:30
Minus 3.
00:32
And so we can factor this expression that we have here.
00:37
So when we do this, we know these first terms are going to have a y in them.
00:44
And we can figure out what the coefficients are going to be, because if we factor two, the only factors for two are just two times one.
00:53
So those are going to be the coefficients for the y term here.
00:59
And if we look at the three term, the only factors for three are three times one.
01:08
And so we're going to either have a three here or a three here and then a one on the opposite side.
01:16
So we can figure out where the three and one needs to go by using guess and check.
01:25
So let's just put the three and the one here...