October 2018 1 1K Report
Jika x1 dan x2 adalah akar-akar persamaan 3x^2 - 12x + 21 = 0 maka nilai dari x1^2 + x2^2 + 7x1x2 =...

a. 35
b. 49
c. 51
d. 53
e. 63

ket : ^ = pangkat

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