Tìm x : \( (2x-1)(x^2-x+1)+x^2 (3-2x) = 2 ; \)

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Bài 2. Tìm x :
a) \( (2x-1)(x^2-x+1)+x^2 (3-2x) = 2 ; \)

b) \( 3(1-4x)(x-2)+4(3x+1)(x+2) = 24 ; \)

c) \( (x+1)(x+2)(x+3)-x^3 -8x(x+2) = 6 ; \)

d) \( (x+1)(x^2+2x+4)-x^2(x+3)+8 = 0. \)