Algebra Examples

$\frac{- 14 x^{7} + 8 x^{5} - 6 x^{4} + 5 x}{x^{3}}$

Step 1

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

$x^{3}$

$0 x^{2}$

$0 x$

$0$

$14 x^{7}$

$0 x^{6}$

$8 x^{5}$

$6 x^{4}$

$0 x^{3}$

$0 x^{2}$

$5 x$

$0$

Step 2

Divide the highest order term in the dividend $- 14 x^{7}$ by the highest order term in divisor $x^{3}$ .

$14 x^{4}$

$x^{3}$

$0 x^{2}$

$0 x$

$0$

$14 x^{7}$

$0 x^{6}$

$8 x^{5}$

$6 x^{4}$

$0 x^{3}$

$0 x^{2}$

$5 x$

$0$

Step 3

Multiply the new quotient term by the divisor.

$14 x^{4}$

$x^{3}$

$0 x^{2}$

$0 x$

$0$

$14 x^{7}$

$0 x^{6}$

$8 x^{5}$

$6 x^{4}$

$0 x^{3}$

$0 x^{2}$

$5 x$

$0$

$14 x^{7}$

$0$

Step 4

The expression needs to be subtracted from the dividend, so change all the signs in $- 14 x^{7} + 0 + 0 + 0$

$14 x^{4}$

$x^{3}$

$0 x^{2}$

$0 x$

$0$

$14 x^{7}$

$0 x^{6}$

$8 x^{5}$

$6 x^{4}$

$0 x^{3}$

$0 x^{2}$

$5 x$

$0$

$14 x^{7}$

$0$

Step 5

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

$14 x^{4}$

$x^{3}$

$0 x^{2}$

$0 x$

$0$

$14 x^{7}$

$0 x^{6}$

$8 x^{5}$

$6 x^{4}$

$0 x^{3}$

$0 x^{2}$

$5 x$

$0$

$14 x^{7}$

$0$

$8 x^{5}$

$6 x^{4}$

Step 6

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

$14 x^{4}$

$x^{3}$

$0 x^{2}$

$0 x$

$0$

$14 x^{7}$

$0 x^{6}$

$8 x^{5}$

$6 x^{4}$

$0 x^{3}$

$0 x^{2}$

$5 x$

$0$

$14 x^{7}$

$0$

$8 x^{5}$

$6 x^{4}$

$0 x^{3}$

$0 x^{2}$

Step 7

Divide the highest order term in the dividend $8 x^{5}$ by the highest order term in divisor $x^{3}$ .

$14 x^{4}$

$0 x^{3}$

$8 x^{2}$

$x^{3}$

$0 x^{2}$

$0 x$

$0$

$14 x^{7}$

$0 x^{6}$

$8 x^{5}$

$6 x^{4}$

$0 x^{3}$

$0 x^{2}$

$5 x$

$0$

$14 x^{7}$

$0$

$8 x^{5}$

$6 x^{4}$

$0 x^{3}$

$0 x^{2}$

Step 8

Multiply the new quotient term by the divisor.

$14 x^{4}$

$0 x^{3}$

$8 x^{2}$

$x^{3}$

$0 x^{2}$

$0 x$

$0$

$14 x^{7}$

$0 x^{6}$

$8 x^{5}$

$6 x^{4}$

$0 x^{3}$

$0 x^{2}$

$5 x$

$0$

$14 x^{7}$

$0$

$8 x^{5}$

$6 x^{4}$

$0 x^{3}$

$0 x^{2}$

$8 x^{5}$

$0$

Step 9

The expression needs to be subtracted from the dividend, so change all the signs in $8 x^{5} + 0 + 0 + 0$

$14 x^{4}$

$0 x^{3}$

$8 x^{2}$

$x^{3}$

$0 x^{2}$

$0 x$

$0$

$14 x^{7}$

$0 x^{6}$

$8 x^{5}$

$6 x^{4}$

$0 x^{3}$

$0 x^{2}$

$5 x$

$0$

$14 x^{7}$

$0$

$8 x^{5}$

$6 x^{4}$

$0 x^{3}$

$0 x^{2}$

$8 x^{5}$

$0$

Step 10

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

$14 x^{4}$

$0 x^{3}$

$8 x^{2}$

$x^{3}$

$0 x^{2}$

$0 x$

$0$

$14 x^{7}$

$0 x^{6}$

$8 x^{5}$

$6 x^{4}$

$0 x^{3}$

$0 x^{2}$

$5 x$

$0$

$14 x^{7}$

$0$

$8 x^{5}$

$6 x^{4}$

$0 x^{3}$

$0 x^{2}$

$8 x^{5}$

$0$

$6 x^{4}$

$0$

Step 11

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

$14 x^{4}$

$0 x^{3}$

$8 x^{2}$

$x^{3}$

$0 x^{2}$

$0 x$

$0$

$14 x^{7}$

$0 x^{6}$

$8 x^{5}$

$6 x^{4}$

$0 x^{3}$

$0 x^{2}$

$5 x$

$0$

$14 x^{7}$

$0$

$8 x^{5}$

$6 x^{4}$

$0 x^{3}$

$0 x^{2}$

$8 x^{5}$

$0$

$6 x^{4}$

$0$

$5 x$

$0$

Step 12

Divide the highest order term in the dividend $- 6 x^{4}$ by the highest order term in divisor $x^{3}$ .

$14 x^{4}$

$0 x^{3}$

$8 x^{2}$

$6 x$

$x^{3}$

$0 x^{2}$

$0 x$

$0$

$14 x^{7}$

$0 x^{6}$

$8 x^{5}$

$6 x^{4}$

$0 x^{3}$

$0 x^{2}$

$5 x$

$0$

$14 x^{7}$

$0$

$8 x^{5}$

$6 x^{4}$

$0 x^{3}$

$0 x^{2}$

$8 x^{5}$

$0$

$6 x^{4}$

$0$

$5 x$

$0$

Step 13

Multiply the new quotient term by the divisor.

$14 x^{4}$

$0 x^{3}$

$8 x^{2}$

$6 x$

$x^{3}$

$0 x^{2}$

$0 x$

$0$

$14 x^{7}$

$0 x^{6}$

$8 x^{5}$

$6 x^{4}$

$0 x^{3}$

$0 x^{2}$

$5 x$

$0$

$14 x^{7}$

$0$

$8 x^{5}$

$6 x^{4}$

$0 x^{3}$

$0 x^{2}$

$8 x^{5}$

$0$

$6 x^{4}$

$0$

$5 x$

$0$

$6 x^{4}$

$0$

Step 14

The expression needs to be subtracted from the dividend, so change all the signs in $- 6 x^{4} + 0 + 0 + 0$

							-	$14 x^{4}$	+	$0 x^{3}$	+	$8 x^{2}$	-	$6 x$
$x^{3}$	+	$0 x^{2}$	+	$0 x$	+	$0$	-	$14 x^{7}$	+	$0 x^{6}$	+	$8 x^{5}$	-	$6 x^{4}$	+	$0 x^{3}$	+	$0 x^{2}$	+	$5 x$	+	$0$
							+	$14 x^{7}$	-	$0$	-	$0$	-	$0$
											+	$8 x^{5}$	-	$6 x^{4}$	+	$0 x^{3}$	+	$0 x^{2}$
											-	$8 x^{5}$	-	$0$	-	$0$	-	$0$
													-	$6 x^{4}$	+	$0$	+	$0$	+	$5 x$	+	$0$
													+	$6 x^{4}$	-	$0$	-	$0$	-	$0$

Step 15

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

							-	$14 x^{4}$	+	$0 x^{3}$	+	$8 x^{2}$	-	$6 x$
$x^{3}$	+	$0 x^{2}$	+	$0 x$	+	$0$	-	$14 x^{7}$	+	$0 x^{6}$	+	$8 x^{5}$	-	$6 x^{4}$	+	$0 x^{3}$	+	$0 x^{2}$	+	$5 x$	+	$0$
							+	$14 x^{7}$	-	$0$	-	$0$	-	$0$
											+	$8 x^{5}$	-	$6 x^{4}$	+	$0 x^{3}$	+	$0 x^{2}$
											-	$8 x^{5}$	-	$0$	-	$0$	-	$0$
													-	$6 x^{4}$	+	$0$	+	$0$	+	$5 x$	+	$0$
													+	$6 x^{4}$	-	$0$	-	$0$	-	$0$
																			+	$5 x$

Step 16

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

							-	$14 x^{4}$	+	$0 x^{3}$	+	$8 x^{2}$	-	$6 x$
$x^{3}$	+	$0 x^{2}$	+	$0 x$	+	$0$	-	$14 x^{7}$	+	$0 x^{6}$	+	$8 x^{5}$	-	$6 x^{4}$	+	$0 x^{3}$	+	$0 x^{2}$	+	$5 x$	+	$0$
							+	$14 x^{7}$	-	$0$	-	$0$	-	$0$
											+	$8 x^{5}$	-	$6 x^{4}$	+	$0 x^{3}$	+	$0 x^{2}$
											-	$8 x^{5}$	-	$0$	-	$0$	-	$0$
													-	$6 x^{4}$	+	$0$	+	$0$	+	$5 x$	+	$0$
													+	$6 x^{4}$	-	$0$	-	$0$	-	$0$
																			+	$5 x$	+	$0$

Step 17

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

$- 14 x^{4} + 8 x^{2} - 6 x + \frac{5 x}{x^{3}}$