00:01
So we're told to factor this polynomial here.
00:04
And the thing to notice is that this polynomial has four terms.
00:09
And when you've got a polynomial with four terms, you know, one, two, three, four, right? there's four monomial terms.
00:17
When you have a polynomial with four terms and you want to try the grouping strategy for factoring, this should be one of the first things you try.
00:26
And so how does that work? well, the way that works is that we group these up either mentally or you can actually write parentheses if you want.
00:41
Okay? so i need to put a plus sign there, so because it's actually plus negative 12y and plus 9.
00:49
Or you could put the parentheses around here, but then you need to change this to a negative...
