Divide Using Long Polynomial Division 6x^3+23x^2+13x+11 is divided by 3x+1

$6 x^{3} + 23 x^{2} + 13 x + 11$ is divided by $3 x + 1$

Step 1

Write the problem as a mathematical expression.

$\frac{6 x^{3} + 23 x^{2} + 13 x + 11}{3 x + 1}$

Step 2

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

$3 x$

$1$

$6 x^{3}$

$23 x^{2}$

$13 x$

$11$

Step 3

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

					$2 x^{2}$
	$3 x$	+	$1$		$6 x^{3}$	+	$23 x^{2}$	+	$13 x$	+	$11$

Step 4

Multiply the new quotient term by the divisor.

				$2 x^{2}$
$3 x$	+	$1$		$6 x^{3}$	+	$23 x^{2}$	+	$13 x$	+	$11$
			+	$6 x^{3}$	+	$2 x^{2}$

Step 5

The expression needs to be subtracted from the dividend, so change all the signs in $6 x^{3} + 2 x^{2}$

				$2 x^{2}$
$3 x$	+	$1$		$6 x^{3}$	+	$23 x^{2}$	+	$13 x$	+	$11$
			-	$6 x^{3}$	-	$2 x^{2}$

Step 6

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

				$2 x^{2}$
$3 x$	+	$1$		$6 x^{3}$	+	$23 x^{2}$	+	$13 x$	+	$11$
			-	$6 x^{3}$	-	$2 x^{2}$
					+	$21 x^{2}$

Step 7

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

				$2 x^{2}$
$3 x$	+	$1$		$6 x^{3}$	+	$23 x^{2}$	+	$13 x$	+	$11$
			-	$6 x^{3}$	-	$2 x^{2}$
					+	$21 x^{2}$	+	$13 x$

Step 8

Divide the highest order term in the dividend $21 x^{2}$ by the highest order term in divisor $3 x$ .

				$2 x^{2}$	+	$7 x$
$3 x$	+	$1$		$6 x^{3}$	+	$23 x^{2}$	+	$13 x$	+	$11$
			-	$6 x^{3}$	-	$2 x^{2}$
					+	$21 x^{2}$	+	$13 x$

Step 9

Multiply the new quotient term by the divisor.

				$2 x^{2}$	+	$7 x$
$3 x$	+	$1$		$6 x^{3}$	+	$23 x^{2}$	+	$13 x$	+	$11$
			-	$6 x^{3}$	-	$2 x^{2}$
					+	$21 x^{2}$	+	$13 x$
					+	$21 x^{2}$	+	$7 x$

Step 10

The expression needs to be subtracted from the dividend, so change all the signs in $21 x^{2} + 7 x$

				$2 x^{2}$	+	$7 x$
$3 x$	+	$1$		$6 x^{3}$	+	$23 x^{2}$	+	$13 x$	+	$11$
			-	$6 x^{3}$	-	$2 x^{2}$
					+	$21 x^{2}$	+	$13 x$
					-	$21 x^{2}$	-	$7 x$

Step 11

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

				$2 x^{2}$	+	$7 x$
$3 x$	+	$1$		$6 x^{3}$	+	$23 x^{2}$	+	$13 x$	+	$11$
			-	$6 x^{3}$	-	$2 x^{2}$
					+	$21 x^{2}$	+	$13 x$
					-	$21 x^{2}$	-	$7 x$
							+	$6 x$

Step 12

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

				$2 x^{2}$	+	$7 x$
$3 x$	+	$1$		$6 x^{3}$	+	$23 x^{2}$	+	$13 x$	+	$11$
			-	$6 x^{3}$	-	$2 x^{2}$
					+	$21 x^{2}$	+	$13 x$
					-	$21 x^{2}$	-	$7 x$
							+	$6 x$	+	$11$

Step 13

Divide the highest order term in the dividend $6 x$ by the highest order term in divisor $3 x$ .

				$2 x^{2}$	+	$7 x$	+	$2$
$3 x$	+	$1$		$6 x^{3}$	+	$23 x^{2}$	+	$13 x$	+	$11$
			-	$6 x^{3}$	-	$2 x^{2}$
					+	$21 x^{2}$	+	$13 x$
					-	$21 x^{2}$	-	$7 x$
							+	$6 x$	+	$11$

Step 14

Multiply the new quotient term by the divisor.

				$2 x^{2}$	+	$7 x$	+	$2$
$3 x$	+	$1$		$6 x^{3}$	+	$23 x^{2}$	+	$13 x$	+	$11$
			-	$6 x^{3}$	-	$2 x^{2}$
					+	$21 x^{2}$	+	$13 x$
					-	$21 x^{2}$	-	$7 x$
							+	$6 x$	+	$11$
							+	$6 x$	+	$2$

Step 15

The expression needs to be subtracted from the dividend, so change all the signs in $6 x + 2$

				$2 x^{2}$	+	$7 x$	+	$2$
$3 x$	+	$1$		$6 x^{3}$	+	$23 x^{2}$	+	$13 x$	+	$11$
			-	$6 x^{3}$	-	$2 x^{2}$
					+	$21 x^{2}$	+	$13 x$
					-	$21 x^{2}$	-	$7 x$
							+	$6 x$	+	$11$
							-	$6 x$	-	$2$

Step 16

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

				$2 x^{2}$	+	$7 x$	+	$2$
$3 x$	+	$1$		$6 x^{3}$	+	$23 x^{2}$	+	$13 x$	+	$11$
			-	$6 x^{3}$	-	$2 x^{2}$
					+	$21 x^{2}$	+	$13 x$
					-	$21 x^{2}$	-	$7 x$
							+	$6 x$	+	$11$
							-	$6 x$	-	$2$
									+	$9$

Step 17

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

$2 x^{2} + 7 x + 2 + \frac{9}{3 x + 1}$

Divide Using Long Polynomial Division 6x^3+23x^2+13x+11 is divided by 3x+1

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