00:01
To use synthetic division, you want to look at the coefficients.
00:04
So x to the third power is a quotient of 1, negative 1x squared, and then you have 2x, and then you have 4.
00:13
So looking at the divisor, x minus 2, you want to set it equal to 0.
00:20
So x minus 2 equal to 0 will be 2.
00:23
So 2 is the number you're going to divide it by.
00:27
Now you're going to write the coefficients.
00:29
1, negative 1, 2, and 4.
00:33
Now what you're going to do first is bring down your 1, then you're going to multiply, and then you're going to put the number here.
00:44
So 2 times 1 is 2.
00:49
Now you're going to add it.
00:50
Negative 1 plus 2 is positive 1.
00:53
Now same idea.
00:54
You're going to multiply these 2, and you're going to put it here...