Odredi sva realna rješenja jednadžbe (2+5)x2−4x+2+(5−2)x2−4x+2=18.\left(2 + \sqrt{5}\right)^{x^2 - 4x + 2} + \left(\sqrt{5} - 2\right)^{x^2 - 4x + 2} = 18.(2+5)x2−4x+2+(5−2)x2−4x+2=18.