Rewrite as .

Factor out of .

Rewrite as .

Pull terms out from under the radical.

Multiply by .

Rewrite as .

Factor out of .

Rewrite as .

Pull terms out from under the radical.

Multiply by .

Rewrite as .

Factor out of .

Rewrite as .

Pull terms out from under the radical.

Add and .

The result can be shown in multiple forms.

Exact Form:

Decimal Form:

Evaluate 3 square root of 27-2 square root of 18+ square root of 12