Ind the roots of the quadratic equation x = 2 ± i.

The mathematical expression given is not a quadratic equation. A quadratic equation has the general formula: ax^2 + bx + c = 0. Since its degree is 2, it would yield two roots. The expression given, therefore, are the roots; x = 2+i and x=2 - i. These two roots are imaginary because they are complex numbers.