Common Radical Expressions

Common Radical Expressions

Radical Expressions are called common if their radicands, the terms under the radical sign, have the same value.

Common Radicals Not Common Radicals

and and

Common Radical Expressions

Question 1:

Mari and Justin’s math teacher put two radical expressions on the board,

and

Mari said the two expressions were common radical expressions but Justin disagreed. Who is correct? Explain why they are correct.