Algebra Examples

$\sqrt{15} \cdot \sqrt{35}$

Step 1

Combine using the product rule for radicals.

$\sqrt{15 \cdot 35}$

Step 2

Multiply $15$ by $35$ .

$\sqrt{525}$

Step 3

Rewrite $525$ as $5^{2} \cdot 21$ .

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Step 3.1

Factor $25$ out of $525$ .

$\sqrt{25 (21)}$

Step 3.2

Rewrite $25$ as $5^{2}$ .

$\sqrt{5^{2} \cdot 21}$

$\sqrt{5^{2} \cdot 21}$

Step 4

Pull terms out from under the radical.

$5 \sqrt{21}$

Step 5

The result can be shown in multiple forms.

Exact Form:

$5 \sqrt{21}$

Decimal Form:

$22.91287847 \dots$

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