Text Simplify: 12+27−3.\sqrt{12}+\sqrt{27}-\sqrt{3}.12+27−3. Solution Reduce each surd: 12=23\sqrt{12}=2\sqrt{3}12=23, 27=33\sqrt{27}=3\sqrt{3}27=33. 23+33−3=43.2\sqrt{3}+3\sqrt{3}-\sqrt{3}=4\sqrt{3}.23+33−3=43. 43 \boxed{\,4\sqrt{3}\,}43