Radical Expression

RADICAL EXPRESSION

DEFINITON

An expression that containing a square root. 

EXAMPLE

are examples of radical expression. 

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.]

MORE INFORMATION

Radical: Thesymbol that is used to denote square root or nth roots.
Radicand: Radicand is a number or expression inside the radical symbol.