It is known that the solution set of quadratic inequality x ^ 2 + ax + 2a-3 > 0 is R 1 / if the value range of real number a is set a, find a

It is known that the solution set of quadratic inequality x ^ 2 + ax + 2a-3 > 0 is R 1 / if the value range of real number a is set a, find a

Let's be clear about the question Set R 1 / if real number What do you mean