Question

va rog ajutatima la aceste probleme ca nu imi dau seama​

Answer 1

4.

(8$\sqrt{30}$) : (4*2$\sqrt{6}$ - 4$\sqrt{6}$ ) - $\sqrt{10}$ * (6$\sqrt{2}$ - 3$\sqrt{2\\}$) =

= (8$\sqrt{30}$) : 4$\sqrt{6}$ - $\sqrt{10}$ *  3$\sqrt{2\\}$ =

= 2$\sqrt{5}$ - 3$\sqrt{20}$ = 2$\sqrt{5}$ - 6$\sqrt{5}$ = -4$\sqrt{5}$

Sper ca e bine.