Quadratic Equation Imaginary Roots Example. The number of roots of a polynomial equation is equal to its degree. Then the root is x 3 since 3 3 0.
That is x 2 sum of roots x product of roots 0. Linear functions only have one root. Notice that after combining the values we are left with a negative value under the square root radical.
If we consider a general quadratic equation.
Solution of a quadratic equation by different. Quadratic functions may have zero one or two roots. Root of quadratic equation. An easy example is the following.