Expression
Definition of Expression
- A mathematical phrase that combines numbers and/or variables using mathematical operations.
- An expression is a representation of a value; for example, variables and/or numerals that appear alone or in combination with operators are expressions.
Examples of Expression
The following are few mathematical expressions.
Solved Example on Expression
Evaluate the expression for x = 1.
Choices:
A. – 2
B. 2
C. 0
D. 1
Correct Answer: A
Solution:
Step 1: Substitue x = 1 in the expression and then simplify.
Step 2: = 2 + 0 + (- 4)
Step 3: = - 2
Related Terms for Expression
- Variable
- Constant
- Operations
Additional Links for Expression
