Respuesta :

Answer:8

Step-by-step explanation:

it is the only one without a variable.

Answer:

[tex]\boxed {\tt 8}[/tex]

Step-by-step explanation:

A constant is a term without a variable.

Let's analyze each term of the expression: 13x³+x²-4x+8

13x³: this has a variable of x³

x²: this has a variable of x²

-4x: this has a variable of x

8: this has no variable

Since 8 is the term without a variable, 8 is the constant.