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.]
Quick Summary
- Radical expressions involve roots.
- The radicand is the expression under the radical symbol.
- Radical expressions can be simplified.
🍎 Teacher Insights
Emphasize the importance of simplifying radicals before performing other operations. Use visual aids to illustrate the concept of roots.🎓 Prerequisites
- Basic Algebra
- Understanding of Square Roots
Check Your Knowledge
Q1: Evaluate the radical expression \sqrt{a+2b} when a = 2 and b = 4.
Q2: What is the radicand in the expression \sqrt{x+1}?
Frequently Asked Questions
Q: What is a radicand?
A: The radicand is the number or expression inside the radical symbol.
Q: How do you simplify a radical expression?
A: You simplify a radical expression by finding the largest perfect square (or cube, etc.) factor of the radicand and taking its root.