Question

AJUTOOOOR UUUURGEEEENT!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Answer 1

0.5 il scriem ca 1/2

1/2 : 1/10 + 15/√5 - √45=

1/2:1/10=5

5+ 15/√5 - 3√5=

se amplifica cu √5 si obtinem

5√5/√5 + 15/√5- 3√5√5=
(5√5+ 15 - 15)/√5=
5√5/√5= 5

Answer 2

5/10x10/1+15/√5-√45
10 cu 10 se simplifica
iar √5 se amplifica
5+15√5-√45
√45=3√5
5+15√5-3√5
5+12√5
atat...BAFTA in continuare...... :)