November 2018 1 115 Report
Akar akar persamaan kuadrat 3x² + x - 2 = 0 adalah x1 dan x2
nilai dari 9 ( x1 + x2 )² - 6x1x2 = . . . . .
a. -5
b. -4
c. -1
d. 4
e. 5
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