Question

What must NOT be included in an expression?

1. an equals sign

2. at least one variable

3. one or more numbers

4. an operation such as addition

Answer 1

1. an equals sign

Explanation:

expression does NOT have a equal sign but an equation does have an equal sign.

Answer 2

1. an equal sign

Explanation:

An expression is a mathematical statement that does not contain an equal sign. It cannot be solved for unless the value of the variable is given.