January 2019 1 161 Report
SBMPTN 2016 , mat saintek kode 249 , soal no 15

diket x1, x2 adalah akar" dari persamaan x^2 + 5ax + a^3 - 4a + 1 = 0.
nilai a sehingga x1 + x1x2 + x3 maksimum pada interval {-3,3} adalah ...

a) -3
b) -V3
c) 0
d) V3
e) 3
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