Algebra Examples

$(32 x^{8} - 8 x^{6} + 28 x^{4}) \div 4 x^{4}$

Step 1

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

$4 x^{4}$

$0 x^{3}$

$0 x^{2}$

$0 x$

$0$

$32 x^{8}$

$0 x^{7}$

$8 x^{6}$

$0 x^{5}$

$28 x^{4}$

$0 x^{3}$

$0 x^{2}$

$0 x$

$0$

Step 2

Divide the highest order term in the dividend $32 x^{8}$ by the highest order term in divisor $4 x^{4}$ .

$8 x^{4}$

$4 x^{4}$

$0 x^{3}$

$0 x^{2}$

$0 x$

$0$

$32 x^{8}$

$0 x^{7}$

$8 x^{6}$

$0 x^{5}$

$28 x^{4}$

$0 x^{3}$

$0 x^{2}$

$0 x$

$0$

Step 3

Multiply the new quotient term by the divisor.

$8 x^{4}$

$4 x^{4}$

$0 x^{3}$

$0 x^{2}$

$0 x$

$0$

$32 x^{8}$

$0 x^{7}$

$8 x^{6}$

$0 x^{5}$

$28 x^{4}$

$0 x^{3}$

$0 x^{2}$

$0 x$

$0$

$32 x^{8}$

$0$

Step 4

The expression needs to be subtracted from the dividend, so change all the signs in $32 x^{8} + 0 + 0 + 0 + 0$

$8 x^{4}$

$4 x^{4}$

$0 x^{3}$

$0 x^{2}$

$0 x$

$0$

$32 x^{8}$

$0 x^{7}$

$8 x^{6}$

$0 x^{5}$

$28 x^{4}$

$0 x^{3}$

$0 x^{2}$

$0 x$

$0$

$32 x^{8}$

$0$

Step 5

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

$8 x^{4}$

$4 x^{4}$

$0 x^{3}$

$0 x^{2}$

$0 x$

$0$

$32 x^{8}$

$0 x^{7}$

$8 x^{6}$

$0 x^{5}$

$28 x^{4}$

$0 x^{3}$

$0 x^{2}$

$0 x$

$0$

$32 x^{8}$

$0$

$8 x^{6}$

$0$

$28 x^{4}$

Step 6

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

$8 x^{4}$

$4 x^{4}$

$0 x^{3}$

$0 x^{2}$

$0 x$

$0$

$32 x^{8}$

$0 x^{7}$

$8 x^{6}$

$0 x^{5}$

$28 x^{4}$

$0 x^{3}$

$0 x^{2}$

$0 x$

$0$

$32 x^{8}$

$0$

$8 x^{6}$

$0$

$28 x^{4}$

$0 x^{3}$

$0 x^{2}$

$0 x$

Step 7

Divide the highest order term in the dividend $- 8 x^{6}$ by the highest order term in divisor $4 x^{4}$ .

$8 x^{4}$

$0 x^{3}$

$2 x^{2}$

$4 x^{4}$

$0 x^{3}$

$0 x^{2}$

$0 x$

$0$

$32 x^{8}$

$0 x^{7}$

$8 x^{6}$

$0 x^{5}$

$28 x^{4}$

$0 x^{3}$

$0 x^{2}$

$0 x$

$0$

$32 x^{8}$

$0$

$8 x^{6}$

$0$

$28 x^{4}$

$0 x^{3}$

$0 x^{2}$

$0 x$

Step 8

Multiply the new quotient term by the divisor.

$8 x^{4}$

$0 x^{3}$

$2 x^{2}$

$4 x^{4}$

$0 x^{3}$

$0 x^{2}$

$0 x$

$0$

$32 x^{8}$

$0 x^{7}$

$8 x^{6}$

$0 x^{5}$

$28 x^{4}$

$0 x^{3}$

$0 x^{2}$

$0 x$

$0$

$32 x^{8}$

$0$

$8 x^{6}$

$0$

$28 x^{4}$

$0 x^{3}$

$0 x^{2}$

$0 x$

$8 x^{6}$

$0$

Step 9

The expression needs to be subtracted from the dividend, so change all the signs in $- 8 x^{6} + 0 + 0 + 0 + 0$

$8 x^{4}$

$0 x^{3}$

$2 x^{2}$

$4 x^{4}$

$0 x^{3}$

$0 x^{2}$

$0 x$

$0$

$32 x^{8}$

$0 x^{7}$

$8 x^{6}$

$0 x^{5}$

$28 x^{4}$

$0 x^{3}$

$0 x^{2}$

$0 x$

$0$

$32 x^{8}$

$0$

$8 x^{6}$

$0$

$28 x^{4}$

$0 x^{3}$

$0 x^{2}$

$0 x$

$8 x^{6}$

$0$

Step 10

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

$8 x^{4}$

$0 x^{3}$

$2 x^{2}$

$4 x^{4}$

$0 x^{3}$

$0 x^{2}$

$0 x$

$0$

$32 x^{8}$

$0 x^{7}$

$8 x^{6}$

$0 x^{5}$

$28 x^{4}$

$0 x^{3}$

$0 x^{2}$

$0 x$

$0$

$32 x^{8}$

$0$

$8 x^{6}$

$0$

$28 x^{4}$

$0 x^{3}$

$0 x^{2}$

$0 x$

$8 x^{6}$

$0$

$28 x^{4}$

$0$

Step 11

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

$8 x^{4}$

$0 x^{3}$

$2 x^{2}$

$4 x^{4}$

$0 x^{3}$

$0 x^{2}$

$0 x$

$0$

$32 x^{8}$

$0 x^{7}$

$8 x^{6}$

$0 x^{5}$

$28 x^{4}$

$0 x^{3}$

$0 x^{2}$

$0 x$

$0$

$32 x^{8}$

$0$

$8 x^{6}$

$0$

$28 x^{4}$

$0 x^{3}$

$0 x^{2}$

$0 x$

$8 x^{6}$

$0$

$28 x^{4}$

$0$

$0 x$

$0$

Step 12

Divide the highest order term in the dividend $28 x^{4}$ by the highest order term in divisor $4 x^{4}$ .

$8 x^{4}$

$0 x^{3}$

$2 x^{2}$

$0 x$

$7$

$4 x^{4}$

$0 x^{3}$

$0 x^{2}$

$0 x$

$0$

$32 x^{8}$

$0 x^{7}$

$8 x^{6}$

$0 x^{5}$

$28 x^{4}$

$0 x^{3}$

$0 x^{2}$

$0 x$

$0$

$32 x^{8}$

$0$

$8 x^{6}$

$0$

$28 x^{4}$

$0 x^{3}$

$0 x^{2}$

$0 x$

$8 x^{6}$

$0$

$28 x^{4}$

$0$

$0 x$

$0$

Step 13

Multiply the new quotient term by the divisor.

$8 x^{4}$

$0 x^{3}$

$2 x^{2}$

$0 x$

$7$

$4 x^{4}$

$0 x^{3}$

$0 x^{2}$

$0 x$

$0$

$32 x^{8}$

$0 x^{7}$

$8 x^{6}$

$0 x^{5}$

$28 x^{4}$

$0 x^{3}$

$0 x^{2}$

$0 x$

$0$

$32 x^{8}$

$0$

$8 x^{6}$

$0$

$28 x^{4}$

$0 x^{3}$

$0 x^{2}$

$0 x$

$8 x^{6}$

$0$

$28 x^{4}$

$0$

$0 x$

$0$

$28 x^{4}$

$0$

Step 14

The expression needs to be subtracted from the dividend, so change all the signs in $28 x^{4} + 0 + 0 + 0 + 0$

										$8 x^{4}$	+	$0 x^{3}$	-	$2 x^{2}$	+	$0 x$	+	$7$
$4 x^{4}$	+	$0 x^{3}$	+	$0 x^{2}$	+	$0 x$	+	$0$		$32 x^{8}$	+	$0 x^{7}$	-	$8 x^{6}$	+	$0 x^{5}$	+	$28 x^{4}$	+	$0 x^{3}$	+	$0 x^{2}$	+	$0 x$	+	$0$
									-	$32 x^{8}$	-	$0$	-	$0$	-	$0$	-	$0$
													-	$8 x^{6}$	+	$0$	+	$28 x^{4}$	+	$0 x^{3}$	+	$0 x^{2}$	+	$0 x$
													+	$8 x^{6}$	-	$0$	-	$0$	-	$0$	-	$0$
																	+	$28 x^{4}$	+	$0$	+	$0$	+	$0 x$	+	$0$
																	-	$28 x^{4}$	-	$0$	-	$0$	-	$0$	-	$0$

Step 15

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

										$8 x^{4}$	+	$0 x^{3}$	-	$2 x^{2}$	+	$0 x$	+	$7$
$4 x^{4}$	+	$0 x^{3}$	+	$0 x^{2}$	+	$0 x$	+	$0$		$32 x^{8}$	+	$0 x^{7}$	-	$8 x^{6}$	+	$0 x^{5}$	+	$28 x^{4}$	+	$0 x^{3}$	+	$0 x^{2}$	+	$0 x$	+	$0$
									-	$32 x^{8}$	-	$0$	-	$0$	-	$0$	-	$0$
													-	$8 x^{6}$	+	$0$	+	$28 x^{4}$	+	$0 x^{3}$	+	$0 x^{2}$	+	$0 x$
													+	$8 x^{6}$	-	$0$	-	$0$	-	$0$	-	$0$
																	+	$28 x^{4}$	+	$0$	+	$0$	+	$0 x$	+	$0$
																	-	$28 x^{4}$	-	$0$	-	$0$	-	$0$	-	$0$
																										$0$

Step 16

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

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