A radical expression is an expression containing a square root.
are examples of 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.
when a = 2 and b = 4.A. 9
B. 8
C. 7
D. 6
Correct Answer: D
Step 1:
[Substitute the values of a and b in the given radical expression.]
Step 2 :=
Step 3:
Multiply.]
Step 4: = 6 [Simplify.]