How to Rationalize the Denominator

What is the simplified form of 5√12?

• 5√3

• 10√3

• 20√3

• 15√3

When you multiply a square root by itself, what is the result?

• The number inside the square root

• The square root of the number inside

• The number inside the square root multiplied by 2

• The square of the number inside the square root

Can you multiply a number outside a square root by a number inside the square root?

• Yes, always

• No, never

• Only if both numbers are prime

• Only if the number outside is a multiple of the number inside

What is the rationalized form of 3/√5?

• 3√5 / 25

• 3√5 / 5

• 3 / 5

• √5 / 3