1）:(-3x)^2-(2x+1)(3x-2)-3(x+2)(x-2)=09x^2-6x^2+x+2-3x^2+12=0x=-14设m^2-m+1=0,求m^3-3m^2+3m-2011的值.m^3-3m^2+3m-2011=m(m^2--3m+3)-2011=m{(m^2--m+1)-2m+2}-2011=m(-2m+2)-2011=(-2m^2+2m)-2011-2{(m^2-m+1...