TOLONG BANTU DONG PLISSS

a) x1 = 0 dan x2 = 4
= (x - 0) (x - 4)
= x² - 4x

b) (1 + 3√2) dan (1 - 3√2)
x1 = 1 + 3√2 dan x2 = 1 - 3√2
= (x - 1 - 3√2) (x - 1 + 3√2)
= x² - 2x - 17