9/20 Video Lesson (Adding/Subtracting Radicals)

What condition must be met for radical expressions to be added or subtracted directly?

• They must have the same coefficient.

• They must have the same radicand.

• They must be perfect squares.

• They must be simplified to a single term.

When simplifying √12, which perfect square factor is used?

• 2

• 3

• 4

• 6

What is the largest perfect square factor used to simplify √32?

• 4

• 8

• 16

• 2

What is the simplified form of the expression 9√12 + √32 - √72?

• 18√3 + 2√2

• 18√3 - 2√2

• 18√3 + 10√2

• 18√3 - 10√2