Question

aduceti la forma cea mai simpla:
√3(√12-2√27)

Answer 1

$\sqrt{3} ( \sqrt{12} -2 \sqrt{27} )= \sqrt{3} (2 \sqrt{3} -2 \cdot 3 \sqrt{3} )= \sqrt{3} (2 \sqrt{3} -6 \sqrt{3} )= \\ =\sqrt{3} \cdot (-4 \sqrt{3} )=3 \cdot (-4)=-12$