Combine using the product rule for radicals.

Multiply by .

Rewrite as .

Pull terms out from under the radical, assuming positive real numbers.

Multiply square root of 7* square root of 7

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# Multiply square root of 7* square root of 7

Combine using the product rule for radicals.

Multiply by .

Rewrite as .

Pull terms out from under the radical, assuming positive real numbers.

Multiply square root of 7* square root of 7