Chọn câu đúng (4x^2 - 3x + 5)/(x^3 - 1) - (1 - 2x)/(x^2 + x + 1) - 6/(x - 1)= -12x/ x^3-1

4x2−3x+5x3−1−1−2xx2+x+1−6x−1=−12xx3−1

4x2−3x+5x3−1−1−2xx2+x+1−6x−1=12xx3−1

4x2−3x+5x3−1−1−2xx2+x+1−6x−1=−xx3−1

4x2−3x+5x3−1−1−2xx2+x+1−6x−1=−12xx−1