Algebra Examples

$x^{5} - 1024$ is divided by $x - 4$

Step 1

Write the problem as a mathematical expression.

$\frac{x^{5} - 1024}{x - 4}$

Step 2

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

$x$

$4$

$x^{5}$

$0 x^{4}$

$0 x^{3}$

$0 x^{2}$

$0 x$

$1024$

Step 3

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

$x^{4}$

$x$

$4$

$x^{5}$

$0 x^{4}$

$0 x^{3}$

$0 x^{2}$

$0 x$

$1024$

Step 4

Multiply the new quotient term by the divisor.

$x^{4}$

$x$

$4$

$x^{5}$

$0 x^{4}$

$0 x^{3}$

$0 x^{2}$

$0 x$

$1024$

$x^{5}$

$4 x^{4}$

Step 5

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

$x^{4}$

$x$

$4$

$x^{5}$

$0 x^{4}$

$0 x^{3}$

$0 x^{2}$

$0 x$

$1024$

$x^{5}$

$4 x^{4}$

Step 6

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

$x^{4}$

$x$

$4$

$x^{5}$

$0 x^{4}$

$0 x^{3}$

$0 x^{2}$

$0 x$

$1024$

$x^{5}$

$4 x^{4}$

Step 7

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

$x^{4}$

$x$

$4$

$x^{5}$

$0 x^{4}$

$0 x^{3}$

$0 x^{2}$

$0 x$

$1024$

$x^{5}$

$4 x^{4}$

$0 x^{3}$

Step 8

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

$x^{4}$

$4 x^{3}$

$x$

$4$

$x^{5}$

$0 x^{4}$

$0 x^{3}$

$0 x^{2}$

$0 x$

$1024$

$x^{5}$

$4 x^{4}$

$0 x^{3}$

Step 9

Multiply the new quotient term by the divisor.

$x^{4}$

$4 x^{3}$

$x$

$4$

$x^{5}$

$0 x^{4}$

$0 x^{3}$

$0 x^{2}$

$0 x$

$1024$

$x^{5}$

$4 x^{4}$

$0 x^{3}$

$4 x^{4}$

$16 x^{3}$

Step 10

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

$x^{4}$

$4 x^{3}$

$x$

$4$

$x^{5}$

$0 x^{4}$

$0 x^{3}$

$0 x^{2}$

$0 x$

$1024$

$x^{5}$

$4 x^{4}$

$0 x^{3}$

$4 x^{4}$

$16 x^{3}$

Step 11

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

$x^{4}$

$4 x^{3}$

$x$

$4$

$x^{5}$

$0 x^{4}$

$0 x^{3}$

$0 x^{2}$

$0 x$

$1024$

$x^{5}$

$4 x^{4}$

$0 x^{3}$

$4 x^{4}$

$16 x^{3}$

Step 12

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

$x^{4}$

$4 x^{3}$

$x$

$4$

$x^{5}$

$0 x^{4}$

$0 x^{3}$

$0 x^{2}$

$0 x$

$1024$

$x^{5}$

$4 x^{4}$

$0 x^{3}$

$4 x^{4}$

$16 x^{3}$

$0 x^{2}$

Step 13

Divide the highest order term in the dividend $16 x^{3}$ by the highest order term in divisor $x$ .

$x^{4}$

$4 x^{3}$

$16 x^{2}$

$x$

$4$

$x^{5}$

$0 x^{4}$

$0 x^{3}$

$0 x^{2}$

$0 x$

$1024$

$x^{5}$

$4 x^{4}$

$0 x^{3}$

$4 x^{4}$

$16 x^{3}$

$0 x^{2}$

Step 14

Multiply the new quotient term by the divisor.

$x^{4}$

$4 x^{3}$

$16 x^{2}$

$x$

$4$

$x^{5}$

$0 x^{4}$

$0 x^{3}$

$0 x^{2}$

$0 x$

$1024$

$x^{5}$

$4 x^{4}$

$0 x^{3}$

$4 x^{4}$

$16 x^{3}$

$0 x^{2}$

$16 x^{3}$

$64 x^{2}$

Step 15

The expression needs to be subtracted from the dividend, so change all the signs in $16 x^{3} - 64 x^{2}$

$x^{4}$

$4 x^{3}$

$16 x^{2}$

$x$

$4$

$x^{5}$

$0 x^{4}$

$0 x^{3}$

$0 x^{2}$

$0 x$

$1024$

$x^{5}$

$4 x^{4}$

$0 x^{3}$

$4 x^{4}$

$16 x^{3}$

$0 x^{2}$

$16 x^{3}$

$64 x^{2}$

Step 16

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

$x^{4}$

$4 x^{3}$

$16 x^{2}$

$x$

$4$

$x^{5}$

$0 x^{4}$

$0 x^{3}$

$0 x^{2}$

$0 x$

$1024$

$x^{5}$

$4 x^{4}$

$0 x^{3}$

$4 x^{4}$

$16 x^{3}$

$0 x^{2}$

$16 x^{3}$

$64 x^{2}$

Step 17

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

$x^{4}$

$4 x^{3}$

$16 x^{2}$

$x$

$4$

$x^{5}$

$0 x^{4}$

$0 x^{3}$

$0 x^{2}$

$0 x$

$1024$

$x^{5}$

$4 x^{4}$

$0 x^{3}$

$4 x^{4}$

$16 x^{3}$

$0 x^{2}$

$16 x^{3}$

$64 x^{2}$

$0 x$

Step 18

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

$x^{4}$

$4 x^{3}$

$16 x^{2}$

$64 x$

$x$

$4$

$x^{5}$

$0 x^{4}$

$0 x^{3}$

$0 x^{2}$

$0 x$

$1024$

$x^{5}$

$4 x^{4}$

$0 x^{3}$

$4 x^{4}$

$16 x^{3}$

$0 x^{2}$

$16 x^{3}$

$64 x^{2}$

$0 x$

Step 19

Multiply the new quotient term by the divisor.

$x^{4}$

$4 x^{3}$

$16 x^{2}$

$64 x$

$x$

$4$

$x^{5}$

$0 x^{4}$

$0 x^{3}$

$0 x^{2}$

$0 x$

$1024$

$x^{5}$

$4 x^{4}$

$0 x^{3}$

$4 x^{4}$

$16 x^{3}$

$0 x^{2}$

$16 x^{3}$

$64 x^{2}$

$0 x$

$64 x^{2}$

$256 x$

Step 20

The expression needs to be subtracted from the dividend, so change all the signs in $64 x^{2} - 256 x$

$x^{4}$

$4 x^{3}$

$16 x^{2}$

$64 x$

$x$

$4$

$x^{5}$

$0 x^{4}$

$0 x^{3}$

$0 x^{2}$

$0 x$

$1024$

$x^{5}$

$4 x^{4}$

$0 x^{3}$

$4 x^{4}$

$16 x^{3}$

$0 x^{2}$

$16 x^{3}$

$64 x^{2}$

$0 x$

$64 x^{2}$

$256 x$

Step 21

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

$x^{4}$

$4 x^{3}$

$16 x^{2}$

$64 x$

$x$

$4$

$x^{5}$

$0 x^{4}$

$0 x^{3}$

$0 x^{2}$

$0 x$

$1024$

$x^{5}$

$4 x^{4}$

$0 x^{3}$

$4 x^{4}$

$16 x^{3}$

$0 x^{2}$

$16 x^{3}$

$64 x^{2}$

$0 x$

$64 x^{2}$

$256 x$

Step 22

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

$x^{4}$

$4 x^{3}$

$16 x^{2}$

$64 x$

$x$

$4$

$x^{5}$

$0 x^{4}$

$0 x^{3}$

$0 x^{2}$

$0 x$

$1024$

$x^{5}$

$4 x^{4}$

$0 x^{3}$

$4 x^{4}$

$16 x^{3}$

$0 x^{2}$

$16 x^{3}$

$64 x^{2}$

$0 x$

$64 x^{2}$

$256 x$

$1024$

Step 23

Divide the highest order term in the dividend $256 x$ by the highest order term in divisor $x$ .

$x^{4}$

$4 x^{3}$

$16 x^{2}$

$64 x$

$256$

$x$

$4$

$x^{5}$

$0 x^{4}$

$0 x^{3}$

$0 x^{2}$

$0 x$

$1024$

$x^{5}$

$4 x^{4}$

$0 x^{3}$

$4 x^{4}$

$16 x^{3}$

$0 x^{2}$

$16 x^{3}$

$64 x^{2}$

$0 x$

$64 x^{2}$

$256 x$

$1024$

Step 24

Multiply the new quotient term by the divisor.

$x^{4}$

$4 x^{3}$

$16 x^{2}$

$64 x$

$256$

$x$

$4$

$x^{5}$

$0 x^{4}$

$0 x^{3}$

$0 x^{2}$

$0 x$

$1024$

$x^{5}$

$4 x^{4}$

$0 x^{3}$

$4 x^{4}$

$16 x^{3}$

$0 x^{2}$

$16 x^{3}$

$64 x^{2}$

$0 x$

$64 x^{2}$

$256 x$

$1024$

$256 x$

$1024$

Step 25

The expression needs to be subtracted from the dividend, so change all the signs in $256 x - 1024$

$x^{4}$

$4 x^{3}$

$16 x^{2}$

$64 x$

$256$

$x$

$4$

$x^{5}$

$0 x^{4}$

$0 x^{3}$

$0 x^{2}$

$0 x$

$1024$

$x^{5}$

$4 x^{4}$

$0 x^{3}$

$4 x^{4}$

$16 x^{3}$

$0 x^{2}$

$16 x^{3}$

$64 x^{2}$

$0 x$

$64 x^{2}$

$256 x$

$1024$

$256 x$

$1024$

Step 26

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

$x^{4}$

$4 x^{3}$

$16 x^{2}$

$64 x$

$256$

$x$

$4$

$x^{5}$

$0 x^{4}$

$0 x^{3}$

$0 x^{2}$

$0 x$

$1024$

$x^{5}$

$4 x^{4}$

$0 x^{3}$

$4 x^{4}$

$16 x^{3}$

$0 x^{2}$

$16 x^{3}$

$64 x^{2}$

$0 x$

$64 x^{2}$

$256 x$

$1024$

$256 x$

$1024$

$0$

Step 27

Since the remander is $0$ , the final answer is the quotient.

$x^{4} + 4 x^{3} + 16 x^{2} + 64 x + 256$