Am sa-ti rezolv primele subpuncte, intrucat urmatoarele merg dupa acelasi model.
a) (√30÷√5+7√6)÷(-4√3)
(√6+7√6)÷(-4√3)
8√6÷(-4√3)
-2√2
b) (√42÷√7- 7√6)÷(-2√2)
(√6-7√6)÷(-2√2)
(-6√6)÷(-2√2)
3√3
c) (√66÷√3+9√22)÷(-5√2)
(√22+9√22)÷(-5√2)
10√22÷(-5√2)
-2√11
Bafta!
