January 2019 1 86 Report
9.akar akar persamaan 5x^2 -3x + 25 = 0 ialah a dan b , maka nilai a^2B + aB^2 adalah
A.2 B.3 C.5 D.10 E.15

10a + B = 1/3 dan aB =3/4 jika a dan B adalah akar akar suatu persamaan kuadrat.maka persamaan tersebut adalah
A.12x^2 + 4x + 9 =0
B.12x^2 -4x + 9 = 0
C.12x^2 + 4x - 6 = 0
D.12x^2 + 4x + 6 =0
E.12x^2 + 4x -9 = 0
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