Algebra Examples

$(8 m^{7} - 10 m^{5}) \div 2 m^{3}$

Step 1

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

$2 m^{3}$

$0 m^{2}$

$0 m$

$0$

$8 m^{7}$

$0 m^{6}$

$10 m^{5}$

$0 m^{4}$

$0 m^{3}$

$0 m^{2}$

$0 m$

$0$

Step 2

Divide the highest order term in the dividend $8 m^{7}$ by the highest order term in divisor $2 m^{3}$ .

$4 m^{4}$

$2 m^{3}$

$0 m^{2}$

$0 m$

$0$

$8 m^{7}$

$0 m^{6}$

$10 m^{5}$

$0 m^{4}$

$0 m^{3}$

$0 m^{2}$

$0 m$

$0$

Step 3

Multiply the new quotient term by the divisor.

$4 m^{4}$

$2 m^{3}$

$0 m^{2}$

$0 m$

$0$

$8 m^{7}$

$0 m^{6}$

$10 m^{5}$

$0 m^{4}$

$0 m^{3}$

$0 m^{2}$

$0 m$

$0$

$8 m^{7}$

$0$

Step 4

The expression needs to be subtracted from the dividend, so change all the signs in $8 m^{7} + 0 + 0 + 0$

$4 m^{4}$

$2 m^{3}$

$0 m^{2}$

$0 m$

$0$

$8 m^{7}$

$0 m^{6}$

$10 m^{5}$

$0 m^{4}$

$0 m^{3}$

$0 m^{2}$

$0 m$

$0$

$8 m^{7}$

$0$

Step 5

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

$4 m^{4}$

$2 m^{3}$

$0 m^{2}$

$0 m$

$0$

$8 m^{7}$

$0 m^{6}$

$10 m^{5}$

$0 m^{4}$

$0 m^{3}$

$0 m^{2}$

$0 m$

$0$

$8 m^{7}$

$0$

$10 m^{5}$

$0$

Step 6

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

$4 m^{4}$

$2 m^{3}$

$0 m^{2}$

$0 m$

$0$

$8 m^{7}$

$0 m^{6}$

$10 m^{5}$

$0 m^{4}$

$0 m^{3}$

$0 m^{2}$

$0 m$

$0$

$8 m^{7}$

$0$

$10 m^{5}$

$0$

$0 m^{3}$

$0 m^{2}$

$0 m$

Step 7

Divide the highest order term in the dividend $- 10 m^{5}$ by the highest order term in divisor $2 m^{3}$ .

$4 m^{4}$

$0 m^{3}$

$5 m^{2}$

$2 m^{3}$

$0 m^{2}$

$0 m$

$0$

$8 m^{7}$

$0 m^{6}$

$10 m^{5}$

$0 m^{4}$

$0 m^{3}$

$0 m^{2}$

$0 m$

$0$

$8 m^{7}$

$0$

$10 m^{5}$

$0$

$0 m^{3}$

$0 m^{2}$

$0 m$

Step 8

Multiply the new quotient term by the divisor.

$4 m^{4}$

$0 m^{3}$

$5 m^{2}$

$2 m^{3}$

$0 m^{2}$

$0 m$

$0$

$8 m^{7}$

$0 m^{6}$

$10 m^{5}$

$0 m^{4}$

$0 m^{3}$

$0 m^{2}$

$0 m$

$0$

$8 m^{7}$

$0$

$10 m^{5}$

$0$

$0 m^{3}$

$0 m^{2}$

$0 m$

$10 m^{5}$

$0$

Step 9

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

$4 m^{4}$

$0 m^{3}$

$5 m^{2}$

$2 m^{3}$

$0 m^{2}$

$0 m$

$0$

$8 m^{7}$

$0 m^{6}$

$10 m^{5}$

$0 m^{4}$

$0 m^{3}$

$0 m^{2}$

$0 m$

$0$

$8 m^{7}$

$0$

$10 m^{5}$

$0$

$0 m^{3}$

$0 m^{2}$

$0 m$

$10 m^{5}$

$0$

Step 10

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

$4 m^{4}$

$0 m^{3}$

$5 m^{2}$

$2 m^{3}$

$0 m^{2}$

$0 m$

$0$

$8 m^{7}$

$0 m^{6}$

$10 m^{5}$

$0 m^{4}$

$0 m^{3}$

$0 m^{2}$

$0 m$

$0$

$8 m^{7}$

$0$

$10 m^{5}$

$0$

$0 m^{3}$

$0 m^{2}$

$0 m$

$10 m^{5}$

$0$

Step 11

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

$4 m^{4}$

$0 m^{3}$

$5 m^{2}$

$2 m^{3}$

$0 m^{2}$

$0 m$

$0$

$8 m^{7}$

$0 m^{6}$

$10 m^{5}$

$0 m^{4}$

$0 m^{3}$

$0 m^{2}$

$0 m$

$0$

$8 m^{7}$

$0$

$10 m^{5}$

$0$

$0 m^{3}$

$0 m^{2}$

$0 m$

$10 m^{5}$

$0$

$0 m$

$0$

Step 12

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

$4 m^{4} + 0 m^{3} - 5 m^{2}$