posted by Mathslover Please help .
Find the sum of squares of all real roots of the polynomial f(x)=x^5−7x^3+2x^2−30x+6.
The solutions of this equation are:
X1 = 0.20081
X2 = 3.05709
X3 = -3.2579
X4 = 1.73205*i
X5 = -1.73205*i
so u need sum of all real roorts=20