Adding and Subtracting Radical Expressions

Label the parts of the radical expression.

(one will not be used)

a

b

c

d

index

radicand

exponent

coefficient

radical symbol

What is the simplified form of the square root of 12?

• 2 times the square root of 6

• 3 times the square root of 2

• 4 times the square root of 3

• 2 times the square root of 3

When can you add two radicals together?

• When they are both even numbers

• When one is a square number

• When they have different radicands

• When they have the same radicand

What is the result of 4x plus 3x?

• 3x

• 4x

• 12x

• 7x

How do you multiply two terms like 4x and 3x?

• Multiply the coefficients and add the variables

• Add the coefficients and multiply the variables

• Multiply the coefficients and the variables

• Add the coefficients and the variables

Why can't you subtract the square root of 3 from the square root of 7?

• Because they are both odd numbers

• Because they are both even numbers

• Because they have different radicands

• Because one is a square number