suppose that aii roots of the polynomial equation
x^4 - 4x^3 + ax^2 + bx + 1=0 are positive real numbers. show that all the roots of the polynomial are equal.
suppose that aii roots of the polynomial equation
x^4 - 4x^3 + ax^2 + bx + 1=0 are positive real numbers. show that all the roots of the polynomial are equal.