Interactive Mock Paper • 75 Questions
If the roots of the equation x2+4x+a2−3a=0 are real then the value of a is (are)
a∈(−∞,−1)∪(4,∞)
a∈(−∞,−1]∪[4,∞)
α∈[−2,4]
α∈[−1,4]
