Question

Urgent am nevoie maine Cate puteti atatea faceti !

Answer 1

EX.2

2/5 la -2=c.-4/5

Ex.3

a)4 la putere 3  

ex.4

a)$\{57}$ > $3\sqrt{5}$

b) $4\sqrt{11}$ > $\sqrt{98}$

c)$-\frac{2}{}\sqrt{5}$ < 0.3(7)