二次根式化简

化简：$$\sqrt{48} + \sqrt{27} - \sqrt{12}$$

$$\sqrt{48} = \sqrt{16 \times 3} = 4\sqrt{3}$$
$$\sqrt{27} = \sqrt{9 \times 3} = 3\sqrt{3}$$
$$\sqrt{12} = \sqrt{4 \times 3} = 2\sqrt{3}$$
$$4\sqrt{3}+3\sqrt{3}-2\sqrt{3}=5\sqrt{3}$$