00:01
Okay, so this is a little factoring review.
00:04
So you're asked to factor the expression negative 6a squared plus ab plus b squared.
00:16
So the first thing i do is ask myself, is that a greatest common factor? well, there's no factor that goes into all of those.
00:23
So then it's going to become what's called a quadratic trinomial.
00:26
So i make some brackets for my factorization.
00:30
And i need to have numbers or letters that multiply to what we see in our expression.
00:35
The easiest thing to see first is that i know on the back end is going to have a b and a b.
00:41
On the front end, i need to have a negative 6a.
00:44
So i know i can do 6 times 1 or negative 3 times positive 2 or a different combination of 2 and 3.
00:52
Because i want the negative, one of them has to be negative and i have technically what's a 1a .b here...