Question

which of the following is a constant in the expression $7x^{3}+2$?
a. $7x^{3}$
b. $7$
c. $x^{3}$
d. $2$

Explanation:

Step1: Define constant

A constant is a term with no variable.

Step2: Analyze expression

In $7x^3 + 2$, $7x^3$ has variable $x$, $7$ is a coefficient, $x^3$ is a variable term, $2$ has no variable. Thus, $2$ is the constant.

Answer:

d. 2