﻿ Definition and examples radical expression | define radical expression - Free Math Dictionary Online

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 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.]

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