SubArea: Equations and inequalities with parametersLevel: BProject ID: 9000034703Source Problem: 2010008404Accepted: 1Clonable: 1Easy: 0Identify the set of the values of the real parameter t for which the following equation has two different real roots. x2+(t+2)x+1=0(−∞;−4)∪(0;∞)(−∞;−4)(−4;0)(0;∞)
