In the expression   are called _____. aterms bconstant cexponent ddegree of a term

The blanks in the expression refer to the components of a mathematical expression. Let's analyze the options:

1. Terms (a) - These are the individual parts of an expression that are separated by '+' or '−' signs. For example, in $3x^2 + 4x + 5$, each of $3x^2$, $4x$, and $5$ are terms.

2. Constant (b) - This term specifically refers to a value that does not change. For instance, in the expression $2x + 3$, the number $3$ is a constant.

3. Exponent (c) - This is a mathematical notation indicating how many times a number (the base) is multiplied by itself. In $x^2$, $2$ is the exponent.

4. Degree of a term (d) - This refers to the highest power of the variable in that term. In the expression $4x^3 + 2x^2 + 7$, the greatest degree is $3$ from the term $4x^3$.

Given the context, the most appropriate option to fill in the blank in the expression is "terms" (a).

Final Answer

In the expression, terms are called terms.