Jawabanmu

2014-02-13T20:12:40+07:00
 x^{2} - 3x + 2 = 0
(x - 1) (x + 2) = 0
x1 = 1 atau x2 = -2

(x1 - x2))^{2}
(1 - (-2))^{2}
= 9

x1^{3} +  x2^{3}
 1^{3} + (-2)^3
= 1 - 8
= -7