Răspuns :
[tex]2 \sqrt{6} \times \sqrt{30} = 2 \sqrt{180} = 2 \times 3 \sqrt{20} = 6 \sqrt{20} [/tex]
[tex]2 \sqrt{6} \times \sqrt{30} = 2 \sqrt{180} = \sqrt{ {2}^{2} \times 180 } = \sqrt{4 \times 180} = \sqrt{720 } [/tex]
720|2
360|2
180|2
90|2
45|5
9|3
3|3
1|
[tex] = 12 \sqrt{5} [/tex]