Itu gimana yaa caranya tlg dibantu

(x . 2x) - (-3 . 1) = (x . 8) - (1 . 3)
2x² + 3 = 8x - 3
2x² - 8x + 6 = 0
x² - 4x + 3 = 0
(x - 1)(x - 3) = 0
x = 1   atau   x = 3

HP = {1 , 3}