Related Links

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.

Video Examples: Radical Expression

Solved Example on Recursive Formula

Ques: 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 :=       
Step 3:      Multiply.]
Step 4: = 6 [Simplify.]