Select a set of expressions below. Set A
(x+7)(x−7)

(x−9)(x+9)

(4x−3)(4x+3)

Set B
(x+5)(x+5)

(2x+9)(2x+9)

(x+1)2

Set C
(x−8)2

(x−6)(x−6)

(2x−11)(2x−11)

Identify which set of expressions you selected.

Describe how to multiply these expressions. If you can think of a shortcut, explain it here! Find the products.

Give an example of a multiplication problem that has the same structure as the set you selected. Find the product.

Give an example of a multiplication problem that does NOT have the same structure as the set you selected. Explain why.