Use the distributive property a second time to remove the new grouping symbols. Remember that multiplication by a single term does not require a multiplication dot unless multiplying two constants, and the commutative property of multiplication allows factors to be written in any order. Because 2y is a single term, the product (4x + (20y)) 2y can be rewritten as (4x + (20y))2y. The commutative property of multiplication allows the product (4x + (20y))2y to be rewritten as 2y(4x + (20y)). Now, use the distributive property once again, multiplying 2y by both terms inside the grouping symbols. 2y(4x + (20y)) = Correct: Your answer is correct. (4x) + Incorrect: Your answer is incorrect. (20y)