Add: 2x2+3x\frac{2}{x^2} + \frac{3}{x}x22+x3
2+3xx2\frac{2+3x}{x^2}x22+3x
5x2\frac{5}{x^2}x25
5x3\frac{5}{x^3}x35
2x+3x2\frac{2x+3}{x^2}x22x+3