The equation is .

Compare the equation with .

a = 0.2, b = 0.1 and c = 0.7.

a) Now we can find discriminant value

     (Substitute a = 0.2, b = 0.1 and c = 0.7)

b) The discriminant is positive, so the equation have two rational roots.

c) Apply quadratic formula:

    (Replace , a with 0.2, and b with 0.1)

() \ \

The solutions are .

The discriminant value is and the equation have two complex roots.

The solutions are .