2. Scrieti urmatoarele expresii informatic
pun coroana

b²-4ac
b*b-4*a*c
[tex] \frac{x {}^{3} - 1 }{x(x - 3)(x - 1)} [/tex]
(x*x*x-1)/(x*(x-3)*(x-1))
2-3xy+7
2-3*x*y+7
[tex] \sqrt{ \frac{a {}^{3} }{3a + 2} } [/tex]
sqrt((a*a*a)/(3*a+2))