Finite Math Examples

$f (28) = 5 \sqrt{28}$

Step 1

Rewrite $28$ as $2^{2} \cdot 7$ .

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Step 1.1

Factor $4$ out of $28$ .

$f (28) = 5 \sqrt{4 (7)}$

Step 1.2

Rewrite $4$ as $2^{2}$ .

$f (28) = 5 \sqrt{2^{2} \cdot 7}$

$f (28) = 5 \sqrt{2^{2} \cdot 7}$

Step 2

Pull terms out from under the radical.

$f (28) = 5 (2 \sqrt{7})$

Step 3

Multiply $2$ by $5$ .

$f (28) = 10 \sqrt{7}$

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