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Verified answer
X1 = -2/3x2 = 2
bentuk dengan persamaan kuadrat
x^2 - (-2/3+2)x + (-2/3 x2)
=x^2 + 4/3x - 4/3
= 3x^2 + 4x - 4
Maka PK yg memenuhi :
==> (3x+2) (x-2)
==> 3x² - 6x + 2x - 4
==>. 3x² - 4x - 4