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

Feb 14, 2018

${b}^{2} - 4$

#### Explanation:

So when factoring, remembering this acronym helps (FOIL)

• Front
• Outer
• Inner
• Last

$\left(b + 2\right) \left(b - 2\right)$

$= {b}^{2} + 2 b - 2 b - 4$

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