himpunan penyelesaian dari x^-4x+3=0

x² - 4x +3 = 0
x² - x -3x +3 = 0
x(x-1) - 3(x-1) = 0
(x-1)(x-3) = 0
x-1 = 0
x = 1
x-3 = 0
x = 3

HP = {1,3}