Finite Math Examples

$\frac{- 9 + \sqrt{21}}{- 6}$

Step 1

Move the negative in front of the fraction.

$- \frac{- 9 + \sqrt{21}}{6}$

Step 2

Rewrite $- 9$ as $- 1 (9)$ .

$- \frac{- 1 (9) + \sqrt{21}}{6}$

Step 3

Factor $- 1$ out of $\sqrt{21}$ .

$- \frac{- 1 (9) - 1 (- \sqrt{21})}{6}$

Step 4

Factor $- 1$ out of $- 1 (9) - 1 (- \sqrt{21})$ .

$- \frac{- 1 (9 - \sqrt{21})}{6}$

Step 5

Simplify the expression.

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Step 5.1

Move the negative in front of the fraction.

$- - \frac{9 - \sqrt{21}}{6}$

Step 5.2

Multiply $- 1$ by $- 1$ .

$1 \frac{9 - \sqrt{21}}{6}$

Step 5.3

Multiply $\frac{9 - \sqrt{21}}{6}$ by $1$ .

$\frac{9 - \sqrt{21}}{6}$

$\frac{9 - \sqrt{21}}{6}$

Step 6

The result can be shown in multiple forms.

Exact Form:

$\frac{9 - \sqrt{21}}{6}$

Decimal Form:

$0.73623738 \dots$

$[\begin{array}{c} x^{2} & \frac{1}{2} \\ \sqrt{π} & \int x d x \end{array}]$