Find the number of solutions of the equation x²-2x-3=0= 0 by using the discriminant.
a.cannot determine the number of solutions.
b.the discriminant can only be used for a quadratic equation, and x²-2x-3=0 = 0 is not a quadratic equation.
c. there are no real solutions.
d. there are two solutions.
e.there is one solution.
