Algebra Examples

$(x^{4} + 7 x^{2} + 10) \div (x^{2} + 2)$

Step 1

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

$x^{2}$

$0 x$

$2$

$x^{4}$

$0 x^{3}$

$7 x^{2}$

$0 x$

$10$

Step 2

Divide the highest order term in the dividend $x^{4}$ by the highest order term in divisor $x^{2}$ .

$x^{2}$

$0 x$

$2$

$x^{4}$

$0 x^{3}$

$7 x^{2}$

$0 x$

$10$

Step 3

Multiply the new quotient term by the divisor.

$x^{2}$

$0 x$

$2$

$x^{4}$

$0 x^{3}$

$7 x^{2}$

$0 x$

$10$

$x^{4}$

$0$

$2 x^{2}$

Step 4

The expression needs to be subtracted from the dividend, so change all the signs in $x^{4} + 0 + 2 x^{2}$

$x^{2}$

$0 x$

$2$

$x^{4}$

$0 x^{3}$

$7 x^{2}$

$0 x$

$10$

$x^{4}$

$0$

$2 x^{2}$

Step 5

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

$x^{2}$

$0 x$

$2$

$x^{4}$

$0 x^{3}$

$7 x^{2}$

$0 x$

$10$

$x^{4}$

$0$

$2 x^{2}$

$5 x^{2}$

Step 6

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

$x^{2}$

$0 x$

$2$

$x^{4}$

$0 x^{3}$

$7 x^{2}$

$0 x$

$10$

$x^{4}$

$0$

$2 x^{2}$

$5 x^{2}$

$0 x$

$10$

Step 7

Divide the highest order term in the dividend $5 x^{2}$ by the highest order term in divisor $x^{2}$ .

$x^{2}$

$0 x$

$5$

$x^{2}$

$0 x$

$2$

$x^{4}$

$0 x^{3}$

$7 x^{2}$

$0 x$

$10$

$x^{4}$

$0$

$2 x^{2}$

$5 x^{2}$

$0 x$

$10$

Step 8

Multiply the new quotient term by the divisor.

$x^{2}$

$0 x$

$5$

$x^{2}$

$0 x$

$2$

$x^{4}$

$0 x^{3}$

$7 x^{2}$

$0 x$

$10$

$x^{4}$

$0$

$2 x^{2}$

$5 x^{2}$

$0 x$

$10$

$5 x^{2}$

$0$

$10$

Step 9

The expression needs to be subtracted from the dividend, so change all the signs in $5 x^{2} + 0 + 10$

$x^{2}$

$0 x$

$5$

$x^{2}$

$0 x$

$2$

$x^{4}$

$0 x^{3}$

$7 x^{2}$

$0 x$

$10$

$x^{4}$

$0$

$2 x^{2}$

$5 x^{2}$

$0 x$

$10$

$5 x^{2}$

$0$

$10$

Step 10

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

$x^{2}$

$0 x$

$5$

$x^{2}$

$0 x$

$2$

$x^{4}$

$0 x^{3}$

$7 x^{2}$

$0 x$

$10$

$x^{4}$

$0$

$2 x^{2}$

$5 x^{2}$

$0 x$

$10$

$5 x^{2}$

$0$

$10$

$0$

Step 11

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

$x^{2} + 0 x + 5$