Respuesta :

Answer:

[tex]-2x^3+\frac{256}{5}[/tex]

Step-by-step explanation:

We need to simplify this expression.

[tex]-x^3+\frac{1}{5}-x^3+51[/tex]

We add similar terms :

[tex]-2x^3+\frac{1+5*51}{5}[/tex]

Simplify :

[tex]-2x^3+\frac{256}{5}[/tex]