How do you find the roots, real and imaginary, of #y= x^2-x-2 # using the quadratic formula?
The roots are rational (i.e. real) and are
The quadratic formula gives the roots of the general form of quadratic equation
The roots of a quadratic equation thus critically depend on the discriminant
As it is a complete square one can easily take square root and roots of equation will be rational (i.e. real).
The roots are