Write all complex zeros of the polynomial 18x^5+51x^4-130x^3-248x^2+200x-35.
There are no complex roots of this polynomial. It has five real roots, two of then a repeated root.
In factored form the equation is:
(2x+7)(x^2-5)(3x-1)^2
The roots are: -7/2, sqrt(5), -sqrt(5), 1/3, 1/3