Neka su x1x_1x1, x2x_2x2 i x3x_3x3 različite nultočke polinoma P(x)=x3−3x+1P(x) = x^3 - 3x + 1P(x)=x3−3x+1. Odredi 1x12−3+1x22−3+1x32−3.\frac{1}{x_1^2 - 3} + \frac{1}{x_2^2 - 3} + \frac{1}{x_3^2 - 3}.x12−31+x22−31+x32−31.