∵|2x-2|+(3y+2)2=0,∴2x-2=0,3y+2=0,解得x=1,y=- 2 3 ,原式=-x6y3- 1 2 x3y2+x6y3- 1 2 xy2=- 1 2 x3y2- 1 2 xy2=- 1 2 y2x(x2+1)当x=1,y=- 2 3 时,原式=- 1 2 y2x(x2+1)=(- 1 2 )× 4 9 ×1×(1+1)=- 4 9 .