1(1/2)ln(2x-3)+C2e^x+x^3/3+lnx+C3y'=6x^2-6x-12=6(x-2)(x+1)x<-1或x>2,y'>0单调递增-1x=2,y极小值=16-12-24+3=-17x=-1,y极大值=-2-3+12+3=104y=x^2, x=0,y=0S=∫[0,2]x^2dx=8/3