6(x+1)^2+2(x-1)(x^2+x+1)-2(x+1)^3=32
6(x^2+2x+1)+2(x^3-1)-2(x^3+3x^2+3x+1)=32
6x=34
X=17/3过程再详细一些，O(∩_∩)O谢谢！6(x+1)^2+2(x-1)(x^2+x+1)-2(x+1)^3=32 6(x^2+2x+1)+2(x^3-1)-2(x^3+3x^2+3x+1)=32 6x^2+12x+6+2x^3-2-2x^3-6x^2-6x-2=326x=34X=17/3