# How do you find the roots, real and imaginary, of #y= x^2-x-2 # using the quadratic formula?

##### 1 Answer

Sep 2, 2016

#### Answer:

The roots are rational (i.e. real) and are

#### Explanation:

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

In

=

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

i.e.