00:01
Let's divide x to the fourth minus 1 by x minus 1.
00:04
So i'm going to set this up and have x to the 4th.
00:09
Now here's what you've got to be careful of.
00:11
I've got to have every exponent in there that's descending.
00:15
So i'm going to say i have no x cubes.
00:18
I have no x squared.
00:20
I have no x's.
00:21
And then i'm going to have the minus 1.
00:25
That's probably where you made your mistake.
00:27
So now we'll start dividing.
00:30
The 4th divided by x.
00:32
That's going to be x cubed.
00:33
Let's multiply that.
00:35
So i'm going to say x cube.
00:38
That'll be x to the 4th minus x cubed.
00:42
You see why we need that those extra x is in there now because now we have similar terms.
00:46
I'm going to subtract these...