Respuesta:
[tex] \frac{(9 {x}^{2} {y}^{3} + 12 {x}^{3} {y}^{4} + 15 {x}^{4} {y}^{5} ) }{3x {y}^{3} } = [/tex]
[tex] \frac{9 {x}^{2} {y}^{3} }{3x {y}^{3} } + \frac{12 {x}^{3} {y}^{4} }{3x {y}^{3} } + \frac{15 {x}^{4} {y}^{5} }{3x {y}^{3} } [/tex]
[tex]3x + 4 {x}^{2} y + 5 {x}^{3} {y}^{2} [/tex]
......... Kd
