Question

What is the product of (b+2)(b-2)?

Answer 1

`b^2-4`

Explanation:

So when factoring, remembering this acronym helps (FOIL)

• Front
• Outer
• Inner
• Last

`(b+2)(b-2)`

`= b^2+2b-2b-4`

The middle terms will cancel out and the answer is `b^2-4`.