a) y = ±1
3(C1 - 2x)3/2 + C2x + C3;   b) y = (x + C1) ln |x + C1| + C2x + C3; °c) y = (1/C1 ) ln |C1x + C2| + C3, y = C2x + C3; °d) y = C1x4 + (C2 + C3 ln |x|)x + C4;   e) y = C1 x5 + C2x3 + C3x2 + C4x + C5.