int(-1;0){sqrt(x+1)-(x+1)^2}dx=int(-1;0){(x+1)^(1/2)d(x+1)}-int(-1;0){(x+1)^2d(x+1)}=(2/3)*(x+1)^(3/2)|_{-1}^0-(1/3)*(x+1)^3|_{-1}^0=2/3-1/3=1/3