Pre-Algebra Examples

$\sqrt{3} \cdot \sqrt{7}$

Step 1

Combine using the product rule for radicals.

$\sqrt{3 \cdot 7}$

Step 2

Multiply $3$ by $7$ .

$\sqrt{21}$

Step 3

The result can be shown in multiple forms.

Exact Form:

$\sqrt{21}$

Decimal Form:

$4.58257569 \dots$

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