00:01
Okay, this one's gonna be a lot of work, but here we go.
00:03
First thing we need to do is see if it factors.
00:07
I can tell you it will not factor.
00:10
So we have to list the possible zeros, and to do that, i take the factors of the constant and divide it by the factors of the leading coefficient.
00:26
So the factors of the constant, the constant is 2, are just 1 and 2, and the factors of the leading coefficient, that's just 1.
00:37
So my possible zeros are just plus and minus 1 and plus and minus 2.
00:48
That's not too bad.
00:50
So we're gonna set this up for synthetic division.
00:53
I've got 1, 2, negative 7, and negative 2, and i know i'm gonna drop the 1.
01:04
So we just need to pick one of those four to try first.
01:07
I'm gonna try 2.
01:11
So here we go.
01:12
So first i multiply the number below the line times the number in the box.
01:20
2 times 1 is 2.
01:24
I add.
01:25
2 plus 2 is 4.
01:28
I multiply the number below the line times the number in the box.
01:34
4 times 2 is 8...