Respuesta :

Answer:

[tex]x^{3} +5y-6x^{2} -4y^{2} +8x^{2} y[/tex]

Step-by-step explanation:

[tex]2x^{3} +5y-6x^{2} -4y^{2} +8x^{2} y-x^{3}[/tex]

[tex](2x^{3} -x^{3} )[/tex]

[tex]x^{3} +5y-6x^{2} -4y^{2} +8x^{2} y[/tex]