Level: CProject ID: 9000028407Accepted: 1Clonable: 0Easy: 0Find the condition which is equivalent to the fact that the equation ax2+bx+c=0 with x∈R and real coefficients a, b, c has a unique positive and a unique negative real solution.b2−4ac>0 and ca<0b2−4ac>0 and −b2a<0(ca<0) and (ba>0)(ca<0) and (ba<0)
