Math (Algebra)
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
sum=20 mr.brilliant
Respond to this Question
Similar Questions

biology
Given the part of the molecule shown below, can the underlined atom participate in a hydrogen bond with an approriate bonding partner? 
Algebra
The function f(x)=x^4−10x^3+40x^2−80x+64 has four complex roots, one of which is 2−2i. What is the sum of all real and imaginary coefficients of these roots? 
Product of Roots of Sums of Products of Difference
What is the product of all roots to the equation ++(x−1)(x−2)(x−3)+(x−2)(x−3)(x−4)(x−3)(x−4)(x−5)+(x−4)(x−5)(x−6)(x−5)(x−6)(x−7)+(x−6)(x−7)(x−8)=0? 
Product of Roots of Sums of Products of Difference
What is the product of all roots to the equation ++(x−1)(x−2)(x−3)+(x−2)(x−3)(x−4)(x−3)(x−4)(x−5)+(x−4)(x−5)(x−6)(x−5)(x−6)(x−7)+(x−6)(x−7)(x−8)=0? 
Maths
The function f(x)=x^4−15(x^3)+81(x^2)−201x+182 has four complex roots, one of which is 3−2i. What is the sum of all real and imaginary coefficients of these roots? 
math
The function f(x)=x4−15x3+81x2−201x+182 has four complex roots, one of which is 3−2i. What is the sum of all real and imaginary coefficients of these roots? 
Math
A polynomial function f(x) has degree 6 and has real coefficients. It is given that 3, 2, 11−3i, and 11+28i are roots of f(x). What is the sum of all the roots of f(x)? 
math
What is the sum of all possible real values of x, such that there exists a real value y which satisfies the equation (x+y−40)^2+(x−y−18)^2=0? 
math
For every positive integer n, consider all monic polynomials f(x) with integer coefficients, such that for some real number a x(f(x+a)−f(x))=nf(x) Find the largest possible number of such polynomials f(x) for a fixed n<1000. … 
math (please help!)
What is the sum of all the constants k such that x^2−169−x−k=0 has three distinct real roots?