Question

Efectuati calculul √3(√27-√12)

Answer 1

Răspuns:

3

Explicație pas cu pas:

$\sqrt{3} \times (3 \sqrt{3} - 2 \sqrt{3} ) = \sqrt{3} \times \sqrt{3} = \sqrt{9} = 3(metoda \: 1) \: )$

$\sqrt{3} \times (3 \sqrt{3} - 2 \sqrt{3} ) = 3 \sqrt{9} - 2 \sqrt{9} = 3 \times 3 - 2 \times 3 = 9 - 6 = 3 \: (metoda \: 2) \: )$

Answer 2

Răspuns:

$\sqrt{3} (\sqrt{27}-\sqrt{12})=\sqrt{3}(3\sqrt{3}-\sqrt{12} )=\sqrt{3}(3\sqrt{3}-2\sqrt{3})=\sqrt{3}*\sqrt{3}=\sqrt{3*3}=\sqrt{9}=3$

Explicație pas cu pas: