Combine using the product rule for radicals.

Multiply by .

Factor out of .

Rewrite as .

Pull terms out from under the radical.

The result can be shown in multiple forms.

Exact Form:

Decimal Form:

Evaluate square root of 21* square root of 15

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# Evaluate square root of 21* square root of 15

Combine using the product rule for radicals.

Multiply by .

Factor out of .

Rewrite as .

Pull terms out from under the radical.

The result can be shown in multiple forms.

Exact Form:

Decimal Form:

Evaluate square root of 21* square root of 15