00:01
Given 6x squared minus 11x minus 10, we are going to replace our middle term.
00:07
To do that, we're going to take 6 times negative 10, and we'll get negative 60.
00:11
And then we'll take our middle term negative 11, no variables.
00:15
We're looking for two numbers that multiply to give us negative 60 and combined to give us negative 11.
00:22
So by the time i think about all the factors of 60, 4 and 15 are 11 apart.
00:28
So then i need to figure out which one needs to be negative.
00:33
Well, to get a negative 11, i need my 15 to be negative.
00:37
So let's see, 4 times negative 15 is negative 60.
00:41
Four combined with negative 15 is negative 11.
00:44
So those two work.
00:45
So we'll replace this.
00:47
So i go 6x squared plus 4x minus 15x minus 10.
00:54
Notice our two new terms do equal to be negative 11.
00:59
So we're going to now group our first two and group our last two...