Algebra Examples

$\frac{5 x^{10} - 9 x^{8} - 9 x^{5} + 7 x}{x^{5}}$

Step 1

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

$x^{5}$

$0 x^{4}$

$0 x^{3}$

$0 x^{2}$

$0 x$

$0$

$5 x^{10}$

$0 x^{9}$

$9 x^{8}$

$0 x^{7}$

$0 x^{6}$

$9 x^{5}$

$0 x^{4}$

$0 x^{3}$

$0 x^{2}$

$7 x$

$0$

Step 2

Divide the highest order term in the dividend $5 x^{10}$ by the highest order term in divisor $x^{5}$ .

$5 x^{5}$

$x^{5}$

$0 x^{4}$

$0 x^{3}$

$0 x^{2}$

$0 x$

$0$

$5 x^{10}$

$0 x^{9}$

$9 x^{8}$

$0 x^{7}$

$0 x^{6}$

$9 x^{5}$

$0 x^{4}$

$0 x^{3}$

$0 x^{2}$

$7 x$

$0$

Step 3

Multiply the new quotient term by the divisor.

$5 x^{5}$

$x^{5}$

$0 x^{4}$

$0 x^{3}$

$0 x^{2}$

$0 x$

$0$

$5 x^{10}$

$0 x^{9}$

$9 x^{8}$

$0 x^{7}$

$0 x^{6}$

$9 x^{5}$

$0 x^{4}$

$0 x^{3}$

$0 x^{2}$

$7 x$

$0$

$5 x^{10}$

$0$

Step 4

The expression needs to be subtracted from the dividend, so change all the signs in $5 x^{10} + 0 + 0 + 0 + 0 + 0$

$5 x^{5}$

$x^{5}$

$0 x^{4}$

$0 x^{3}$

$0 x^{2}$

$0 x$

$0$

$5 x^{10}$

$0 x^{9}$

$9 x^{8}$

$0 x^{7}$

$0 x^{6}$

$9 x^{5}$

$0 x^{4}$

$0 x^{3}$

$0 x^{2}$

$7 x$

$0$

$5 x^{10}$

$0$

Step 5

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

$5 x^{5}$

$x^{5}$

$0 x^{4}$

$0 x^{3}$

$0 x^{2}$

$0 x$

$0$

$5 x^{10}$

$0 x^{9}$

$9 x^{8}$

$0 x^{7}$

$0 x^{6}$

$9 x^{5}$

$0 x^{4}$

$0 x^{3}$

$0 x^{2}$

$7 x$

$0$

$5 x^{10}$

$0$

$9 x^{8}$

$0$

$9 x^{5}$

Step 6

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

$5 x^{5}$

$x^{5}$

$0 x^{4}$

$0 x^{3}$

$0 x^{2}$

$0 x$

$0$

$5 x^{10}$

$0 x^{9}$

$9 x^{8}$

$0 x^{7}$

$0 x^{6}$

$9 x^{5}$

$0 x^{4}$

$0 x^{3}$

$0 x^{2}$

$7 x$

$0$

$5 x^{10}$

$0$

$9 x^{8}$

$0$

$9 x^{5}$

$0 x^{4}$

$0 x^{3}$

$0 x^{2}$

$7 x$

Step 7

Divide the highest order term in the dividend $- 9 x^{8}$ by the highest order term in divisor $x^{5}$ .

$5 x^{5}$

$0 x^{4}$

$9 x^{3}$

$x^{5}$

$0 x^{4}$

$0 x^{3}$

$0 x^{2}$

$0 x$

$0$

$5 x^{10}$

$0 x^{9}$

$9 x^{8}$

$0 x^{7}$

$0 x^{6}$

$9 x^{5}$

$0 x^{4}$

$0 x^{3}$

$0 x^{2}$

$7 x$

$0$

$5 x^{10}$

$0$

$9 x^{8}$

$0$

$9 x^{5}$

$0 x^{4}$

$0 x^{3}$

$0 x^{2}$

$7 x$

Step 8

Multiply the new quotient term by the divisor.

$5 x^{5}$

$0 x^{4}$

$9 x^{3}$

$x^{5}$

$0 x^{4}$

$0 x^{3}$

$0 x^{2}$

$0 x$

$0$

$5 x^{10}$

$0 x^{9}$

$9 x^{8}$

$0 x^{7}$

$0 x^{6}$

$9 x^{5}$

$0 x^{4}$

$0 x^{3}$

$0 x^{2}$

$7 x$

$0$

$5 x^{10}$

$0$

$9 x^{8}$

$0$

$9 x^{5}$

$0 x^{4}$

$0 x^{3}$

$0 x^{2}$

$7 x$

$9 x^{8}$

$0$

Step 9

The expression needs to be subtracted from the dividend, so change all the signs in $- 9 x^{8} + 0 + 0 + 0 + 0 + 0$

$5 x^{5}$

$0 x^{4}$

$9 x^{3}$

$x^{5}$

$0 x^{4}$

$0 x^{3}$

$0 x^{2}$

$0 x$

$0$

$5 x^{10}$

$0 x^{9}$

$9 x^{8}$

$0 x^{7}$

$0 x^{6}$

$9 x^{5}$

$0 x^{4}$

$0 x^{3}$

$0 x^{2}$

$7 x$

$0$

$5 x^{10}$

$0$

$9 x^{8}$

$0$

$9 x^{5}$

$0 x^{4}$

$0 x^{3}$

$0 x^{2}$

$7 x$

$9 x^{8}$

$0$

Step 10

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

$5 x^{5}$

$0 x^{4}$

$9 x^{3}$

$x^{5}$

$0 x^{4}$

$0 x^{3}$

$0 x^{2}$

$0 x$

$0$

$5 x^{10}$

$0 x^{9}$

$9 x^{8}$

$0 x^{7}$

$0 x^{6}$

$9 x^{5}$

$0 x^{4}$

$0 x^{3}$

$0 x^{2}$

$7 x$

$0$

$5 x^{10}$

$0$

$9 x^{8}$

$0$

$9 x^{5}$

$0 x^{4}$

$0 x^{3}$

$0 x^{2}$

$7 x$

$9 x^{8}$

$0$

$9 x^{5}$

$0$

Step 11

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

$5 x^{5}$

$0 x^{4}$

$9 x^{3}$

$x^{5}$

$0 x^{4}$

$0 x^{3}$

$0 x^{2}$

$0 x$

$0$

$5 x^{10}$

$0 x^{9}$

$9 x^{8}$

$0 x^{7}$

$0 x^{6}$

$9 x^{5}$

$0 x^{4}$

$0 x^{3}$

$0 x^{2}$

$7 x$

$0$

$5 x^{10}$

$0$

$9 x^{8}$

$0$

$9 x^{5}$

$0 x^{4}$

$0 x^{3}$

$0 x^{2}$

$7 x$

$9 x^{8}$

$0$

$9 x^{5}$

$0$

$0 x^{2}$

$7 x$

$0$

Step 12

Divide the highest order term in the dividend $- 9 x^{5}$ by the highest order term in divisor $x^{5}$ .

$5 x^{5}$

$0 x^{4}$

$9 x^{3}$

$0 x^{2}$

$0 x$

$9$

$x^{5}$

$0 x^{4}$

$0 x^{3}$

$0 x^{2}$

$0 x$

$0$

$5 x^{10}$

$0 x^{9}$

$9 x^{8}$

$0 x^{7}$

$0 x^{6}$

$9 x^{5}$

$0 x^{4}$

$0 x^{3}$

$0 x^{2}$

$7 x$

$0$

$5 x^{10}$

$0$

$9 x^{8}$

$0$

$9 x^{5}$

$0 x^{4}$

$0 x^{3}$

$0 x^{2}$

$7 x$

$9 x^{8}$

$0$

$9 x^{5}$

$0$

$0 x^{2}$

$7 x$

$0$

Step 13

Multiply the new quotient term by the divisor.

$5 x^{5}$

$0 x^{4}$

$9 x^{3}$

$0 x^{2}$

$0 x$

$9$

$x^{5}$

$0 x^{4}$

$0 x^{3}$

$0 x^{2}$

$0 x$

$0$

$5 x^{10}$

$0 x^{9}$

$9 x^{8}$

$0 x^{7}$

$0 x^{6}$

$9 x^{5}$

$0 x^{4}$

$0 x^{3}$

$0 x^{2}$

$7 x$

$0$

$5 x^{10}$

$0$

$9 x^{8}$

$0$

$9 x^{5}$

$0 x^{4}$

$0 x^{3}$

$0 x^{2}$

$7 x$

$9 x^{8}$

$0$

$9 x^{5}$

$0$

$0 x^{2}$

$7 x$

$0$

$9 x^{5}$

$0$

Step 14

The expression needs to be subtracted from the dividend, so change all the signs in $- 9 x^{5} + 0 + 0 + 0 + 0 + 0$

												$5 x^{5}$	+	$0 x^{4}$	-	$9 x^{3}$	+	$0 x^{2}$	+	$0 x$	-	$9$
$x^{5}$	+	$0 x^{4}$	+	$0 x^{3}$	+	$0 x^{2}$	+	$0 x$	+	$0$		$5 x^{10}$	+	$0 x^{9}$	-	$9 x^{8}$	+	$0 x^{7}$	+	$0 x^{6}$	-	$9 x^{5}$	+	$0 x^{4}$	+	$0 x^{3}$	+	$0 x^{2}$	+	$7 x$	+	$0$
											-	$5 x^{10}$	-	$0$	-	$0$	-	$0$	-	$0$	-	$0$
															-	$9 x^{8}$	+	$0$	+	$0$	-	$9 x^{5}$	+	$0 x^{4}$	+	$0 x^{3}$	+	$0 x^{2}$	+	$7 x$
															+	$9 x^{8}$	-	$0$	-	$0$	-	$0$	-	$0$	-	$0$
																					-	$9 x^{5}$	+	$0$	+	$0$	+	$0 x^{2}$	+	$7 x$	+	$0$
																					+	$9 x^{5}$	-	$0$	-	$0$	-	$0$	-	$0$	-	$0$

Step 15

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

												$5 x^{5}$	+	$0 x^{4}$	-	$9 x^{3}$	+	$0 x^{2}$	+	$0 x$	-	$9$
$x^{5}$	+	$0 x^{4}$	+	$0 x^{3}$	+	$0 x^{2}$	+	$0 x$	+	$0$		$5 x^{10}$	+	$0 x^{9}$	-	$9 x^{8}$	+	$0 x^{7}$	+	$0 x^{6}$	-	$9 x^{5}$	+	$0 x^{4}$	+	$0 x^{3}$	+	$0 x^{2}$	+	$7 x$	+	$0$
											-	$5 x^{10}$	-	$0$	-	$0$	-	$0$	-	$0$	-	$0$
															-	$9 x^{8}$	+	$0$	+	$0$	-	$9 x^{5}$	+	$0 x^{4}$	+	$0 x^{3}$	+	$0 x^{2}$	+	$7 x$
															+	$9 x^{8}$	-	$0$	-	$0$	-	$0$	-	$0$	-	$0$
																					-	$9 x^{5}$	+	$0$	+	$0$	+	$0 x^{2}$	+	$7 x$	+	$0$
																					+	$9 x^{5}$	-	$0$	-	$0$	-	$0$	-	$0$	-	$0$
																													+	$7 x$	+	$0$

Step 16

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

$5 x^{5} - 9 x^{3} - 9 + \frac{7 x}{x^{5}}$