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tapi ane mau nyicip satu soal aja
1) 3x^2 - 11x + 3 = a(x-2)(x-1) + b(x-1) + c
3x^2 - 11x + 3 = a (x^2 - 3x + 2) + bx - b + c
3x^2 - 11x + 3 = ax^2 - (3a-b)x + 2a - b + c
identikan ruas kiri dan kanan, maka
a = 3 dan
11 = 3a - b
11 = 3(3) - b
11 = 9 - b
b = -2
3 = 2a - b + c
3 = 2(3) - (-2) + c
3 = 8 + c
c = -5