Divide Using Long Polynomial Division (2x^5+x^4-15x^3-2x^2+10x-24)÷(x^2-x-4)

$(2 x^{5} + x^{4} - 15 x^{3} - 2 x^{2} + 10 x - 24) \div (x^{2} - x - 4)$

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

$x^{2}$

$x$

$4$

$2 x^{5}$

$x^{4}$

$15 x^{3}$

$2 x^{2}$

$10 x$

$24$

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

							$2 x^{3}$
	$x^{2}$	-	$x$	-	$4$		$2 x^{5}$	+	$x^{4}$	-	$15 x^{3}$	-	$2 x^{2}$	+	$10 x$	-	$24$

Multiply the new quotient term by the divisor.

$2 x^{3}$

$x^{2}$

$x$

$4$

$2 x^{5}$

$x^{4}$

$15 x^{3}$

$2 x^{2}$

$10 x$

$24$

$2 x^{5}$

$2 x^{4}$

$8 x^{3}$

The expression needs to be subtracted from the dividend, so change all the signs in $2 x^{5} - 2 x^{4} - 8 x^{3}$

$2 x^{3}$

$x^{2}$

$x$

$4$

$2 x^{5}$

$x^{4}$

$15 x^{3}$

$2 x^{2}$

$10 x$

$24$

$2 x^{5}$

$2 x^{4}$

$8 x^{3}$

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

$2 x^{3}$

$x^{2}$

$x$

$4$

$2 x^{5}$

$x^{4}$

$15 x^{3}$

$2 x^{2}$

$10 x$

$24$

$2 x^{5}$

$2 x^{4}$

$8 x^{3}$

$3 x^{4}$

$7 x^{3}$

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

$2 x^{3}$

$x^{2}$

$x$

$4$

$2 x^{5}$

$x^{4}$

$15 x^{3}$

$2 x^{2}$

$10 x$

$24$

$2 x^{5}$

$2 x^{4}$

$8 x^{3}$

$3 x^{4}$

$7 x^{3}$

$2 x^{2}$

Divide the highest order term in the dividend $3 x^{4}$ by the highest order term in divisor $x^{2}$ .

$2 x^{3}$

$3 x^{2}$

$x^{2}$

$x$

$4$

$2 x^{5}$

$x^{4}$

$15 x^{3}$

$2 x^{2}$

$10 x$

$24$

$2 x^{5}$

$2 x^{4}$

$8 x^{3}$

$3 x^{4}$

$7 x^{3}$

$2 x^{2}$

Multiply the new quotient term by the divisor.

$2 x^{3}$

$3 x^{2}$

$x^{2}$

$x$

$4$

$2 x^{5}$

$x^{4}$

$15 x^{3}$

$2 x^{2}$

$10 x$

$24$

$2 x^{5}$

$2 x^{4}$

$8 x^{3}$

$3 x^{4}$

$7 x^{3}$

$2 x^{2}$

$3 x^{4}$

$3 x^{3}$

$12 x^{2}$

The expression needs to be subtracted from the dividend, so change all the signs in $3 x^{4} - 3 x^{3} - 12 x^{2}$

$2 x^{3}$

$3 x^{2}$

$x^{2}$

$x$

$4$

$2 x^{5}$

$x^{4}$

$15 x^{3}$

$2 x^{2}$

$10 x$

$24$

$2 x^{5}$

$2 x^{4}$

$8 x^{3}$

$3 x^{4}$

$7 x^{3}$

$2 x^{2}$

$3 x^{4}$

$3 x^{3}$

$12 x^{2}$

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

$2 x^{3}$

$3 x^{2}$

$x^{2}$

$x$

$4$

$2 x^{5}$

$x^{4}$

$15 x^{3}$

$2 x^{2}$

$10 x$

$24$

$2 x^{5}$

$2 x^{4}$

$8 x^{3}$

$3 x^{4}$

$7 x^{3}$

$2 x^{2}$

$3 x^{4}$

$3 x^{3}$

$12 x^{2}$

$4 x^{3}$

$10 x^{2}$

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

$2 x^{3}$

$3 x^{2}$

$x^{2}$

$x$

$4$

$2 x^{5}$

$x^{4}$

$15 x^{3}$

$2 x^{2}$

$10 x$

$24$

$2 x^{5}$

$2 x^{4}$

$8 x^{3}$

$3 x^{4}$

$7 x^{3}$

$2 x^{2}$

$3 x^{4}$

$3 x^{3}$

$12 x^{2}$

$4 x^{3}$

$10 x^{2}$

$10 x$

Divide the highest order term in the dividend $- 4 x^{3}$ by the highest order term in divisor $x^{2}$ .

$2 x^{3}$

$3 x^{2}$

$4 x$

$x^{2}$

$x$

$4$

$2 x^{5}$

$x^{4}$

$15 x^{3}$

$2 x^{2}$

$10 x$

$24$

$2 x^{5}$

$2 x^{4}$

$8 x^{3}$

$3 x^{4}$

$7 x^{3}$

$2 x^{2}$

$3 x^{4}$

$3 x^{3}$

$12 x^{2}$

$4 x^{3}$

$10 x^{2}$

$10 x$

Multiply the new quotient term by the divisor.

$2 x^{3}$

$3 x^{2}$

$4 x$

$x^{2}$

$x$

$4$

$2 x^{5}$

$x^{4}$

$15 x^{3}$

$2 x^{2}$

$10 x$

$24$

$2 x^{5}$

$2 x^{4}$

$8 x^{3}$

$3 x^{4}$

$7 x^{3}$

$2 x^{2}$

$3 x^{4}$

$3 x^{3}$

$12 x^{2}$

$4 x^{3}$

$10 x^{2}$

$10 x$

$4 x^{3}$

$4 x^{2}$

$16 x$

The expression needs to be subtracted from the dividend, so change all the signs in $- 4 x^{3} + 4 x^{2} + 16 x$

$2 x^{3}$

$3 x^{2}$

$4 x$

$x^{2}$

$x$

$4$

$2 x^{5}$

$x^{4}$

$15 x^{3}$

$2 x^{2}$

$10 x$

$24$

$2 x^{5}$

$2 x^{4}$

$8 x^{3}$

$3 x^{4}$

$7 x^{3}$

$2 x^{2}$

$3 x^{4}$

$3 x^{3}$

$12 x^{2}$

$4 x^{3}$

$10 x^{2}$

$10 x$

$4 x^{3}$

$4 x^{2}$

$16 x$

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

$2 x^{3}$

$3 x^{2}$

$4 x$

$x^{2}$

$x$

$4$

$2 x^{5}$

$x^{4}$

$15 x^{3}$

$2 x^{2}$

$10 x$

$24$

$2 x^{5}$

$2 x^{4}$

$8 x^{3}$

$3 x^{4}$

$7 x^{3}$

$2 x^{2}$

$3 x^{4}$

$3 x^{3}$

$12 x^{2}$

$4 x^{3}$

$10 x^{2}$

$10 x$

$4 x^{3}$

$4 x^{2}$

$16 x$

$6 x^{2}$

$6 x$

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

$2 x^{3}$

$3 x^{2}$

$4 x$

$x^{2}$

$x$

$4$

$2 x^{5}$

$x^{4}$

$15 x^{3}$

$2 x^{2}$

$10 x$

$24$

$2 x^{5}$

$2 x^{4}$

$8 x^{3}$

$3 x^{4}$

$7 x^{3}$

$2 x^{2}$

$3 x^{4}$

$3 x^{3}$

$12 x^{2}$

$4 x^{3}$

$10 x^{2}$

$10 x$

$4 x^{3}$

$4 x^{2}$

$16 x$

$6 x^{2}$

$6 x$

$24$

Divide the highest order term in the dividend $6 x^{2}$ by the highest order term in divisor $x^{2}$ .

$2 x^{3}$

$3 x^{2}$

$4 x$

$6$

$x^{2}$

$x$

$4$

$2 x^{5}$

$x^{4}$

$15 x^{3}$

$2 x^{2}$

$10 x$

$24$

$2 x^{5}$

$2 x^{4}$

$8 x^{3}$

$3 x^{4}$

$7 x^{3}$

$2 x^{2}$

$3 x^{4}$

$3 x^{3}$

$12 x^{2}$

$4 x^{3}$

$10 x^{2}$

$10 x$

$4 x^{3}$

$4 x^{2}$

$16 x$

$6 x^{2}$

$6 x$

$24$

Multiply the new quotient term by the divisor.

$2 x^{3}$

$3 x^{2}$

$4 x$

$6$

$x^{2}$

$x$

$4$

$2 x^{5}$

$x^{4}$

$15 x^{3}$

$2 x^{2}$

$10 x$

$24$

$2 x^{5}$

$2 x^{4}$

$8 x^{3}$

$3 x^{4}$

$7 x^{3}$

$2 x^{2}$

$3 x^{4}$

$3 x^{3}$

$12 x^{2}$

$4 x^{3}$

$10 x^{2}$

$10 x$

$4 x^{3}$

$4 x^{2}$

$16 x$

$6 x^{2}$

$6 x$

$24$

$6 x^{2}$

$6 x$

$24$

The expression needs to be subtracted from the dividend, so change all the signs in $6 x^{2} - 6 x - 24$

$2 x^{3}$

$3 x^{2}$

$4 x$

$6$

$x^{2}$

$x$

$4$

$2 x^{5}$

$x^{4}$

$15 x^{3}$

$2 x^{2}$

$10 x$

$24$

$2 x^{5}$

$2 x^{4}$

$8 x^{3}$

$3 x^{4}$

$7 x^{3}$

$2 x^{2}$

$3 x^{4}$

$3 x^{3}$

$12 x^{2}$

$4 x^{3}$

$10 x^{2}$

$10 x$

$4 x^{3}$

$4 x^{2}$

$16 x$

$6 x^{2}$

$6 x$

$24$

$6 x^{2}$

$6 x$

$24$

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

$2 x^{3}$

$3 x^{2}$

$4 x$

$6$

$x^{2}$

$x$

$4$

$2 x^{5}$

$x^{4}$

$15 x^{3}$

$2 x^{2}$

$10 x$

$24$

$2 x^{5}$

$2 x^{4}$

$8 x^{3}$

$3 x^{4}$

$7 x^{3}$

$2 x^{2}$

$3 x^{4}$

$3 x^{3}$

$12 x^{2}$

$4 x^{3}$

$10 x^{2}$

$10 x$

$4 x^{3}$

$4 x^{2}$

$16 x$

$6 x^{2}$

$6 x$

$24$

$6 x^{2}$

$6 x$

$24$

$0$

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

$2 x^{3} + 3 x^{2} - 4 x + 6$

Divide Using Long Polynomial Division (2x^5+x^4-15x^3-2x^2+10x-24)÷(x^2-x-4)

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