Radical Expression
Definition of Radical Expression
- A radical expression is an expression containing a square root.
Examples of Radical Expression
are examples of radical expression.
More about Radical Expression
- Radical: The
symbol that is used to denote square root or nth roots.
- Radicand: Radicand is a number or expression inside the radical symbol.
For example, 5 is the radicand in
.
- Radical equation: An equation containing radical expressions with variables in the radicands.
- Radical inequality: An inequality containing a radical expression with the variable in the radicand.
Solved Example on Radical Expression
Evaluate the radical expression 
when a = 2 and b = 4.
Choices:
A. 9
B. 8
C. 7
D. 6
Correct Answer: D
Solution:
Step 1: 
[Substitute the values of a and b in the given radical expression.]
Step 2: 
[Find the positive square root.]
Step 3: 
[Multiply.]
Step 4: 
[Add.]
Step 5: = 6 [Simplify.]
Related Terms for Radical Expression
- Expression
- Square Root
- Variable
- Radicand
- Radical
- Radical Equation
- Radical Inequality
Additional Links for Radical Expression
