Question

1. which of the following is a constant in the expression $7x^3 + 2$?

a. 7
b. 2
c. $x^3$
d. $7x^3$

Explanation:

A constant is a term in an algebraic expression that has a fixed value and does not contain a variable. In $7x^3 + 2$, $x$ is a variable, so $7x^3$ is a variable term. The number 2 has no attached variable and has a fixed value, so it is the constant.

Answer:

b. 2