November 2018 1 94 Report
Jika x1 dan x2 adalah akar-akar persamaan 2x² - 5x + 1 = 0. Hitunglah:
a. x1²x2 - x1 x2²
b. x1/x2 + x2/x1
c. x1² + x2²
d. (x1²/x1+x2) + (x2²/x1-x2)
pakai cara
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