Question

calculand 2√3-3√12+√12 vei obtine

Answer 1

$2 \sqrt{3}-3 \sqrt{12} +\sqrt{12} = \\ \\ 2 \sqrt{3} -2 \sqrt{12}= \\ \\ 2\sqrt{3} -4 \sqrt{3} = \\ \\= -2 \sqrt{3}$

$\sqrt{12}= \sqrt{2 ^{2}*3 }= 2 \sqrt{3}$