00:01
What i did for this problem is i used my graph and calculator and i found a zero for this.
00:11
So we're looking at 8x cubed plus 22x squared plus 17x plus 3.
00:24
And so i could show you what my graph and calculator looked like, it went up, came back down, and then goes back up pretty quickly.
00:31
And it appeared like x equals negative 1 was a x intercept.
00:36
So i'm going to try that using synthetic division, where i'm just going to write down my coefficients.
00:44
And i know i'm correct if i get a remainder of zero.
00:47
So let's see, you add straight down and you multiply by the zero, what's in the box.
00:52
So that's negative eight.
00:54
And again, i'm adding straight down.
00:56
So that's 14 times negative 1 is negative 14, and you add straight down.
01:01
So that's 3 times negative 1, and you add straight down...