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Det. = (2x+13)(x) - (x+2)(x+6)
0 = 2x^2 + 13x - (x^2 + 8x +12)
0 = 2x^2 + 13x - x^2 -8x - 12
0 = x^2 + 5x - 12
0 = tidak ada pemfaktorannya
Tidak ada jawabannya