Precalculus Examples

$\frac{x^{8} - 1}{x + 2}$

Step 1

Set up the polynomials to be divided. If there is not a term for every exponent, insert one with a value of $0$ .

$x$

$2$

$x^{8}$

$0 x^{7}$

$0 x^{6}$

$0 x^{5}$

$0 x^{4}$

$0 x^{3}$

$0 x^{2}$

$0 x$

$1$

Step 2

Divide the highest order term in the dividend $x^{8}$ by the highest order term in divisor $x$ .

$x^{7}$

$x$

$2$

$x^{8}$

$0 x^{7}$

$0 x^{6}$

$0 x^{5}$

$0 x^{4}$

$0 x^{3}$

$0 x^{2}$

$0 x$

$1$

Step 3

Multiply the new quotient term by the divisor.

$x^{7}$

$x$

$2$

$x^{8}$

$0 x^{7}$

$0 x^{6}$

$0 x^{5}$

$0 x^{4}$

$0 x^{3}$

$0 x^{2}$

$0 x$

$1$

$x^{8}$

$2 x^{7}$

Step 4

The expression needs to be subtracted from the dividend, so change all the signs in $x^{8} + 2 x^{7}$

$x^{7}$

$x$

$2$

$x^{8}$

$0 x^{7}$

$0 x^{6}$

$0 x^{5}$

$0 x^{4}$

$0 x^{3}$

$0 x^{2}$

$0 x$

$1$

$x^{8}$

$2 x^{7}$

Step 5

After changing the signs, add the last dividend from the multiplied polynomial to find the new dividend.

$x^{7}$

$x$

$2$

$x^{8}$

$0 x^{7}$

$0 x^{6}$

$0 x^{5}$

$0 x^{4}$

$0 x^{3}$

$0 x^{2}$

$0 x$

$1$

$x^{8}$

$2 x^{7}$

Step 6

Pull the next terms from the original dividend down into the current dividend.

$x^{7}$

$x$

$2$

$x^{8}$

$0 x^{7}$

$0 x^{6}$

$0 x^{5}$

$0 x^{4}$

$0 x^{3}$

$0 x^{2}$

$0 x$

$1$

$x^{8}$

$2 x^{7}$

$0 x^{6}$

Step 7

Divide the highest order term in the dividend $- 2 x^{7}$ by the highest order term in divisor $x$ .

$x^{7}$

$2 x^{6}$

$x$

$2$

$x^{8}$

$0 x^{7}$

$0 x^{6}$

$0 x^{5}$

$0 x^{4}$

$0 x^{3}$

$0 x^{2}$

$0 x$

$1$

$x^{8}$

$2 x^{7}$

$0 x^{6}$

Step 8

Multiply the new quotient term by the divisor.

$x^{7}$

$2 x^{6}$

$x$

$2$

$x^{8}$

$0 x^{7}$

$0 x^{6}$

$0 x^{5}$

$0 x^{4}$

$0 x^{3}$

$0 x^{2}$

$0 x$

$1$

$x^{8}$

$2 x^{7}$

$0 x^{6}$

$2 x^{7}$

$4 x^{6}$

Step 9

The expression needs to be subtracted from the dividend, so change all the signs in $- 2 x^{7} - 4 x^{6}$

$x^{7}$

$2 x^{6}$

$x$

$2$

$x^{8}$

$0 x^{7}$

$0 x^{6}$

$0 x^{5}$

$0 x^{4}$

$0 x^{3}$

$0 x^{2}$

$0 x$

$1$

$x^{8}$

$2 x^{7}$

$0 x^{6}$

$2 x^{7}$

$4 x^{6}$

Step 10

After changing the signs, add the last dividend from the multiplied polynomial to find the new dividend.

$x^{7}$

$2 x^{6}$

$x$

$2$

$x^{8}$

$0 x^{7}$

$0 x^{6}$

$0 x^{5}$

$0 x^{4}$

$0 x^{3}$

$0 x^{2}$

$0 x$

$1$

$x^{8}$

$2 x^{7}$

$0 x^{6}$

$2 x^{7}$

$4 x^{6}$

Step 11

Pull the next terms from the original dividend down into the current dividend.

$x^{7}$

$2 x^{6}$

$x$

$2$

$x^{8}$

$0 x^{7}$

$0 x^{6}$

$0 x^{5}$

$0 x^{4}$

$0 x^{3}$

$0 x^{2}$

$0 x$

$1$

$x^{8}$

$2 x^{7}$

$0 x^{6}$

$2 x^{7}$

$4 x^{6}$

$0 x^{5}$

Step 12

Divide the highest order term in the dividend $4 x^{6}$ by the highest order term in divisor $x$ .

$x^{7}$

$2 x^{6}$

$4 x^{5}$

$x$

$2$

$x^{8}$

$0 x^{7}$

$0 x^{6}$

$0 x^{5}$

$0 x^{4}$

$0 x^{3}$

$0 x^{2}$

$0 x$

$1$

$x^{8}$

$2 x^{7}$

$0 x^{6}$

$2 x^{7}$

$4 x^{6}$

$0 x^{5}$

Step 13

Multiply the new quotient term by the divisor.

$x^{7}$

$2 x^{6}$

$4 x^{5}$

$x$

$2$

$x^{8}$

$0 x^{7}$

$0 x^{6}$

$0 x^{5}$

$0 x^{4}$

$0 x^{3}$

$0 x^{2}$

$0 x$

$1$

$x^{8}$

$2 x^{7}$

$0 x^{6}$

$2 x^{7}$

$4 x^{6}$

$0 x^{5}$

$4 x^{6}$

$8 x^{5}$

Step 14

The expression needs to be subtracted from the dividend, so change all the signs in $4 x^{6} + 8 x^{5}$

$x^{7}$

$2 x^{6}$

$4 x^{5}$

$x$

$2$

$x^{8}$

$0 x^{7}$

$0 x^{6}$

$0 x^{5}$

$0 x^{4}$

$0 x^{3}$

$0 x^{2}$

$0 x$

$1$

$x^{8}$

$2 x^{7}$

$0 x^{6}$

$2 x^{7}$

$4 x^{6}$

$0 x^{5}$

$4 x^{6}$

$8 x^{5}$

Step 15

After changing the signs, add the last dividend from the multiplied polynomial to find the new dividend.

$x^{7}$

$2 x^{6}$

$4 x^{5}$

$x$

$2$

$x^{8}$

$0 x^{7}$

$0 x^{6}$

$0 x^{5}$

$0 x^{4}$

$0 x^{3}$

$0 x^{2}$

$0 x$

$1$

$x^{8}$

$2 x^{7}$

$0 x^{6}$

$2 x^{7}$

$4 x^{6}$

$0 x^{5}$

$4 x^{6}$

$8 x^{5}$

Step 16

Pull the next terms from the original dividend down into the current dividend.

$x^{7}$

$2 x^{6}$

$4 x^{5}$

$x$

$2$

$x^{8}$

$0 x^{7}$

$0 x^{6}$

$0 x^{5}$

$0 x^{4}$

$0 x^{3}$

$0 x^{2}$

$0 x$

$1$

$x^{8}$

$2 x^{7}$

$0 x^{6}$

$2 x^{7}$

$4 x^{6}$

$0 x^{5}$

$4 x^{6}$

$8 x^{5}$

$0 x^{4}$

Step 17

Divide the highest order term in the dividend $- 8 x^{5}$ by the highest order term in divisor $x$ .

$x^{7}$

$2 x^{6}$

$4 x^{5}$

$8 x^{4}$

$x$

$2$

$x^{8}$

$0 x^{7}$

$0 x^{6}$

$0 x^{5}$

$0 x^{4}$

$0 x^{3}$

$0 x^{2}$

$0 x$

$1$

$x^{8}$

$2 x^{7}$

$0 x^{6}$

$2 x^{7}$

$4 x^{6}$

$0 x^{5}$

$4 x^{6}$

$8 x^{5}$

$0 x^{4}$

Step 18

Multiply the new quotient term by the divisor.

$x^{7}$

$2 x^{6}$

$4 x^{5}$

$8 x^{4}$

$x$

$2$

$x^{8}$

$0 x^{7}$

$0 x^{6}$

$0 x^{5}$

$0 x^{4}$

$0 x^{3}$

$0 x^{2}$

$0 x$

$1$

$x^{8}$

$2 x^{7}$

$0 x^{6}$

$2 x^{7}$

$4 x^{6}$

$0 x^{5}$

$4 x^{6}$

$8 x^{5}$

$0 x^{4}$

$8 x^{5}$

$16 x^{4}$

Step 19

The expression needs to be subtracted from the dividend, so change all the signs in $- 8 x^{5} - 16 x^{4}$

$x^{7}$

$2 x^{6}$

$4 x^{5}$

$8 x^{4}$

$x$

$2$

$x^{8}$

$0 x^{7}$

$0 x^{6}$

$0 x^{5}$

$0 x^{4}$

$0 x^{3}$

$0 x^{2}$

$0 x$

$1$

$x^{8}$

$2 x^{7}$

$0 x^{6}$

$2 x^{7}$

$4 x^{6}$

$0 x^{5}$

$4 x^{6}$

$8 x^{5}$

$0 x^{4}$

$8 x^{5}$

$16 x^{4}$

Step 20

After changing the signs, add the last dividend from the multiplied polynomial to find the new dividend.

$x^{7}$

$2 x^{6}$

$4 x^{5}$

$8 x^{4}$

$x$

$2$

$x^{8}$

$0 x^{7}$

$0 x^{6}$

$0 x^{5}$

$0 x^{4}$

$0 x^{3}$

$0 x^{2}$

$0 x$

$1$

$x^{8}$

$2 x^{7}$

$0 x^{6}$

$2 x^{7}$

$4 x^{6}$

$0 x^{5}$

$4 x^{6}$

$8 x^{5}$

$0 x^{4}$

$8 x^{5}$

$16 x^{4}$

Step 21

Pull the next terms from the original dividend down into the current dividend.

$x^{7}$

$2 x^{6}$

$4 x^{5}$

$8 x^{4}$

$x$

$2$

$x^{8}$

$0 x^{7}$

$0 x^{6}$

$0 x^{5}$

$0 x^{4}$

$0 x^{3}$

$0 x^{2}$

$0 x$

$1$

$x^{8}$

$2 x^{7}$

$0 x^{6}$

$2 x^{7}$

$4 x^{6}$

$0 x^{5}$

$4 x^{6}$

$8 x^{5}$

$0 x^{4}$

$8 x^{5}$

$16 x^{4}$

$0 x^{3}$

Step 22

Divide the highest order term in the dividend $16 x^{4}$ by the highest order term in divisor $x$ .

$x^{7}$

$2 x^{6}$

$4 x^{5}$

$8 x^{4}$

$16 x^{3}$

$x$

$2$

$x^{8}$

$0 x^{7}$

$0 x^{6}$

$0 x^{5}$

$0 x^{4}$

$0 x^{3}$

$0 x^{2}$

$0 x$

$1$

$x^{8}$

$2 x^{7}$

$0 x^{6}$

$2 x^{7}$

$4 x^{6}$

$0 x^{5}$

$4 x^{6}$

$8 x^{5}$

$0 x^{4}$

$8 x^{5}$

$16 x^{4}$

$0 x^{3}$

Step 23

Multiply the new quotient term by the divisor.

$x^{7}$

$2 x^{6}$

$4 x^{5}$

$8 x^{4}$

$16 x^{3}$

$x$

$2$

$x^{8}$

$0 x^{7}$

$0 x^{6}$

$0 x^{5}$

$0 x^{4}$

$0 x^{3}$

$0 x^{2}$

$0 x$

$1$

$x^{8}$

$2 x^{7}$

$0 x^{6}$

$2 x^{7}$

$4 x^{6}$

$0 x^{5}$

$4 x^{6}$

$8 x^{5}$

$0 x^{4}$

$8 x^{5}$

$16 x^{4}$

$0 x^{3}$

$16 x^{4}$

$32 x^{3}$

Step 24

The expression needs to be subtracted from the dividend, so change all the signs in $16 x^{4} + 32 x^{3}$

$x^{7}$

$2 x^{6}$

$4 x^{5}$

$8 x^{4}$

$16 x^{3}$

$x$

$2$

$x^{8}$

$0 x^{7}$

$0 x^{6}$

$0 x^{5}$

$0 x^{4}$

$0 x^{3}$

$0 x^{2}$

$0 x$

$1$

$x^{8}$

$2 x^{7}$

$0 x^{6}$

$2 x^{7}$

$4 x^{6}$

$0 x^{5}$

$4 x^{6}$

$8 x^{5}$

$0 x^{4}$

$8 x^{5}$

$16 x^{4}$

$0 x^{3}$

$16 x^{4}$

$32 x^{3}$

Step 25

After changing the signs, add the last dividend from the multiplied polynomial to find the new dividend.

$x^{7}$

$2 x^{6}$

$4 x^{5}$

$8 x^{4}$

$16 x^{3}$

$x$

$2$

$x^{8}$

$0 x^{7}$

$0 x^{6}$

$0 x^{5}$

$0 x^{4}$

$0 x^{3}$

$0 x^{2}$

$0 x$

$1$

$x^{8}$

$2 x^{7}$

$0 x^{6}$

$2 x^{7}$

$4 x^{6}$

$0 x^{5}$

$4 x^{6}$

$8 x^{5}$

$0 x^{4}$

$8 x^{5}$

$16 x^{4}$

$0 x^{3}$

$16 x^{4}$

$32 x^{3}$

Step 26

Pull the next terms from the original dividend down into the current dividend.

$x^{7}$

$2 x^{6}$

$4 x^{5}$

$8 x^{4}$

$16 x^{3}$

$x$

$2$

$x^{8}$

$0 x^{7}$

$0 x^{6}$

$0 x^{5}$

$0 x^{4}$

$0 x^{3}$

$0 x^{2}$

$0 x$

$1$

$x^{8}$

$2 x^{7}$

$0 x^{6}$

$2 x^{7}$

$4 x^{6}$

$0 x^{5}$

$4 x^{6}$

$8 x^{5}$

$0 x^{4}$

$8 x^{5}$

$16 x^{4}$

$0 x^{3}$

$16 x^{4}$

$32 x^{3}$

$0 x^{2}$

Step 27

Divide the highest order term in the dividend $- 32 x^{3}$ by the highest order term in divisor $x$ .

$x^{7}$

$2 x^{6}$

$4 x^{5}$

$8 x^{4}$

$16 x^{3}$

$32 x^{2}$

$x$

$2$

$x^{8}$

$0 x^{7}$

$0 x^{6}$

$0 x^{5}$

$0 x^{4}$

$0 x^{3}$

$0 x^{2}$

$0 x$

$1$

$x^{8}$

$2 x^{7}$

$0 x^{6}$

$2 x^{7}$

$4 x^{6}$

$0 x^{5}$

$4 x^{6}$

$8 x^{5}$

$0 x^{4}$

$8 x^{5}$

$16 x^{4}$

$0 x^{3}$

$16 x^{4}$

$32 x^{3}$

$0 x^{2}$

Step 28

Multiply the new quotient term by the divisor.

$x^{7}$

$2 x^{6}$

$4 x^{5}$

$8 x^{4}$

$16 x^{3}$

$32 x^{2}$

$x$

$2$

$x^{8}$

$0 x^{7}$

$0 x^{6}$

$0 x^{5}$

$0 x^{4}$

$0 x^{3}$

$0 x^{2}$

$0 x$

$1$

$x^{8}$

$2 x^{7}$

$0 x^{6}$

$2 x^{7}$

$4 x^{6}$

$0 x^{5}$

$4 x^{6}$

$8 x^{5}$

$0 x^{4}$

$8 x^{5}$

$16 x^{4}$

$0 x^{3}$

$16 x^{4}$

$32 x^{3}$

$0 x^{2}$

$32 x^{3}$

$64 x^{2}$

Step 29

The expression needs to be subtracted from the dividend, so change all the signs in $- 32 x^{3} - 64 x^{2}$

$x^{7}$

$2 x^{6}$

$4 x^{5}$

$8 x^{4}$

$16 x^{3}$

$32 x^{2}$

$x$

$2$

$x^{8}$

$0 x^{7}$

$0 x^{6}$

$0 x^{5}$

$0 x^{4}$

$0 x^{3}$

$0 x^{2}$

$0 x$

$1$

$x^{8}$

$2 x^{7}$

$0 x^{6}$

$2 x^{7}$

$4 x^{6}$

$0 x^{5}$

$4 x^{6}$

$8 x^{5}$

$0 x^{4}$

$8 x^{5}$

$16 x^{4}$

$0 x^{3}$

$16 x^{4}$

$32 x^{3}$

$0 x^{2}$

$32 x^{3}$

$64 x^{2}$

Step 30

After changing the signs, add the last dividend from the multiplied polynomial to find the new dividend.

$x^{7}$

$2 x^{6}$

$4 x^{5}$

$8 x^{4}$

$16 x^{3}$

$32 x^{2}$

$x$

$2$

$x^{8}$

$0 x^{7}$

$0 x^{6}$

$0 x^{5}$

$0 x^{4}$

$0 x^{3}$

$0 x^{2}$

$0 x$

$1$

$x^{8}$

$2 x^{7}$

$0 x^{6}$

$2 x^{7}$

$4 x^{6}$

$0 x^{5}$

$4 x^{6}$

$8 x^{5}$

$0 x^{4}$

$8 x^{5}$

$16 x^{4}$

$0 x^{3}$

$16 x^{4}$

$32 x^{3}$

$0 x^{2}$

$32 x^{3}$

$64 x^{2}$

Step 31

Pull the next terms from the original dividend down into the current dividend.

$x^{7}$

$2 x^{6}$

$4 x^{5}$

$8 x^{4}$

$16 x^{3}$

$32 x^{2}$

$x$

$2$

$x^{8}$

$0 x^{7}$

$0 x^{6}$

$0 x^{5}$

$0 x^{4}$

$0 x^{3}$

$0 x^{2}$

$0 x$

$1$

$x^{8}$

$2 x^{7}$

$0 x^{6}$

$2 x^{7}$

$4 x^{6}$

$0 x^{5}$

$4 x^{6}$

$8 x^{5}$

$0 x^{4}$

$8 x^{5}$

$16 x^{4}$

$0 x^{3}$

$16 x^{4}$

$32 x^{3}$

$0 x^{2}$

$32 x^{3}$

$64 x^{2}$

$0 x$

Step 32

Divide the highest order term in the dividend $64 x^{2}$ by the highest order term in divisor $x$ .

$x^{7}$

$2 x^{6}$

$4 x^{5}$

$8 x^{4}$

$16 x^{3}$

$32 x^{2}$

$64 x$

$x$

$2$

$x^{8}$

$0 x^{7}$

$0 x^{6}$

$0 x^{5}$

$0 x^{4}$

$0 x^{3}$

$0 x^{2}$

$0 x$

$1$

$x^{8}$

$2 x^{7}$

$0 x^{6}$

$2 x^{7}$

$4 x^{6}$

$0 x^{5}$

$4 x^{6}$

$8 x^{5}$

$0 x^{4}$

$8 x^{5}$

$16 x^{4}$

$0 x^{3}$

$16 x^{4}$

$32 x^{3}$

$0 x^{2}$

$32 x^{3}$

$64 x^{2}$

$0 x$

Step 33

Multiply the new quotient term by the divisor.

$x^{7}$

$2 x^{6}$

$4 x^{5}$

$8 x^{4}$

$16 x^{3}$

$32 x^{2}$

$64 x$

$x$

$2$

$x^{8}$

$0 x^{7}$

$0 x^{6}$

$0 x^{5}$

$0 x^{4}$

$0 x^{3}$

$0 x^{2}$

$0 x$

$1$

$x^{8}$

$2 x^{7}$

$0 x^{6}$

$2 x^{7}$

$4 x^{6}$

$0 x^{5}$

$4 x^{6}$

$8 x^{5}$

$0 x^{4}$

$8 x^{5}$

$16 x^{4}$

$0 x^{3}$

$16 x^{4}$

$32 x^{3}$

$0 x^{2}$

$32 x^{3}$

$64 x^{2}$

$0 x$

$64 x^{2}$

$128 x$

Step 34

The expression needs to be subtracted from the dividend, so change all the signs in $64 x^{2} + 128 x$

$x^{7}$

$2 x^{6}$

$4 x^{5}$

$8 x^{4}$

$16 x^{3}$

$32 x^{2}$

$64 x$

$x$

$2$

$x^{8}$

$0 x^{7}$

$0 x^{6}$

$0 x^{5}$

$0 x^{4}$

$0 x^{3}$

$0 x^{2}$

$0 x$

$1$

$x^{8}$

$2 x^{7}$

$0 x^{6}$

$2 x^{7}$

$4 x^{6}$

$0 x^{5}$

$4 x^{6}$

$8 x^{5}$

$0 x^{4}$

$8 x^{5}$

$16 x^{4}$

$0 x^{3}$

$16 x^{4}$

$32 x^{3}$

$0 x^{2}$

$32 x^{3}$

$64 x^{2}$

$0 x$

$64 x^{2}$

$128 x$

Step 35

After changing the signs, add the last dividend from the multiplied polynomial to find the new dividend.

$x^{7}$

$2 x^{6}$

$4 x^{5}$

$8 x^{4}$

$16 x^{3}$

$32 x^{2}$

$64 x$

$x$

$2$

$x^{8}$

$0 x^{7}$

$0 x^{6}$

$0 x^{5}$

$0 x^{4}$

$0 x^{3}$

$0 x^{2}$

$0 x$

$1$

$x^{8}$

$2 x^{7}$

$0 x^{6}$

$2 x^{7}$

$4 x^{6}$

$0 x^{5}$

$4 x^{6}$

$8 x^{5}$

$0 x^{4}$

$8 x^{5}$

$16 x^{4}$

$0 x^{3}$

$16 x^{4}$

$32 x^{3}$

$0 x^{2}$

$32 x^{3}$

$64 x^{2}$

$0 x$

$64 x^{2}$

$128 x$

Step 36

Pull the next terms from the original dividend down into the current dividend.

$x^{7}$

$2 x^{6}$

$4 x^{5}$

$8 x^{4}$

$16 x^{3}$

$32 x^{2}$

$64 x$

$x$

$2$

$x^{8}$

$0 x^{7}$

$0 x^{6}$

$0 x^{5}$

$0 x^{4}$

$0 x^{3}$

$0 x^{2}$

$0 x$

$1$

$x^{8}$

$2 x^{7}$

$0 x^{6}$

$2 x^{7}$

$4 x^{6}$

$0 x^{5}$

$4 x^{6}$

$8 x^{5}$

$0 x^{4}$

$8 x^{5}$

$16 x^{4}$

$0 x^{3}$

$16 x^{4}$

$32 x^{3}$

$0 x^{2}$

$32 x^{3}$

$64 x^{2}$

$0 x$

$64 x^{2}$

$128 x$

$1$

Step 37

Divide the highest order term in the dividend $- 128 x$ by the highest order term in divisor $x$ .

$x^{7}$

$2 x^{6}$

$4 x^{5}$

$8 x^{4}$

$16 x^{3}$

$32 x^{2}$

$64 x$

$128$

$x$

$2$

$x^{8}$

$0 x^{7}$

$0 x^{6}$

$0 x^{5}$

$0 x^{4}$

$0 x^{3}$

$0 x^{2}$

$0 x$

$1$

$x^{8}$

$2 x^{7}$

$0 x^{6}$

$2 x^{7}$

$4 x^{6}$

$0 x^{5}$

$4 x^{6}$

$8 x^{5}$

$0 x^{4}$

$8 x^{5}$

$16 x^{4}$

$0 x^{3}$

$16 x^{4}$

$32 x^{3}$

$0 x^{2}$

$32 x^{3}$

$64 x^{2}$

$0 x$

$64 x^{2}$

$128 x$

$1$

Step 38

Multiply the new quotient term by the divisor.

$x^{7}$

$2 x^{6}$

$4 x^{5}$

$8 x^{4}$

$16 x^{3}$

$32 x^{2}$

$64 x$

$128$

$x$

$2$

$x^{8}$

$0 x^{7}$

$0 x^{6}$

$0 x^{5}$

$0 x^{4}$

$0 x^{3}$

$0 x^{2}$

$0 x$

$1$

$x^{8}$

$2 x^{7}$

$0 x^{6}$

$2 x^{7}$

$4 x^{6}$

$0 x^{5}$

$4 x^{6}$

$8 x^{5}$

$0 x^{4}$

$8 x^{5}$

$16 x^{4}$

$0 x^{3}$

$16 x^{4}$

$32 x^{3}$

$0 x^{2}$

$32 x^{3}$

$64 x^{2}$

$0 x$

$64 x^{2}$

$128 x$

$1$

$128 x$

$256$

Step 39

The expression needs to be subtracted from the dividend, so change all the signs in $- 128 x - 256$

$x^{7}$

$2 x^{6}$

$4 x^{5}$

$8 x^{4}$

$16 x^{3}$

$32 x^{2}$

$64 x$

$128$

$x$

$2$

$x^{8}$

$0 x^{7}$

$0 x^{6}$

$0 x^{5}$

$0 x^{4}$

$0 x^{3}$

$0 x^{2}$

$0 x$

$1$

$x^{8}$

$2 x^{7}$

$0 x^{6}$

$2 x^{7}$

$4 x^{6}$

$0 x^{5}$

$4 x^{6}$

$8 x^{5}$

$0 x^{4}$

$8 x^{5}$

$16 x^{4}$

$0 x^{3}$

$16 x^{4}$

$32 x^{3}$

$0 x^{2}$

$32 x^{3}$

$64 x^{2}$

$0 x$

$64 x^{2}$

$128 x$

$1$

$128 x$

$256$

Step 40

After changing the signs, add the last dividend from the multiplied polynomial to find the new dividend.

$x^{7}$

$2 x^{6}$

$4 x^{5}$

$8 x^{4}$

$16 x^{3}$

$32 x^{2}$

$64 x$

$128$

$x$

$2$

$x^{8}$

$0 x^{7}$

$0 x^{6}$

$0 x^{5}$

$0 x^{4}$

$0 x^{3}$

$0 x^{2}$

$0 x$

$1$

$x^{8}$

$2 x^{7}$

$0 x^{6}$

$2 x^{7}$

$4 x^{6}$

$0 x^{5}$

$4 x^{6}$

$8 x^{5}$

$0 x^{4}$

$8 x^{5}$

$16 x^{4}$

$0 x^{3}$

$16 x^{4}$

$32 x^{3}$

$0 x^{2}$

$32 x^{3}$

$64 x^{2}$

$0 x$

$64 x^{2}$

$128 x$

$1$

$128 x$

$256$

$255$

Step 41

The final answer is the quotient plus the remainder over the divisor.

$x^{7} - 2 x^{6} + 4 x^{5} - 8 x^{4} + 16 x^{3} - 32 x^{2} + 64 x - 128 + \frac{255}{x + 2}$