Question

11 a ajutatima va rog...Va dau coroana

Answer 1

sper sa te ajute asta

Answer 2

a)6$\sqrt{3}$ x (12$\sqrt{3}$ -5$\sqrt{3}$ - 4$\sqrt{3}$) = 6$\sqrt{3}$ x 3$\sqrt{3}$ = 18 x 3 = 54
b) 2x6$\sqrt{2}$ x (5x2$\sqrt{2}$  - 7x4$\sqrt{2}$ + 6x3$\sqrt{2}$ - 3x5$\sqrt{2}$ = 12$\sqrt{2}$ x (-15$\sqrt{2}$ = -180 x 2 = -360