222k views
3 votes
(2x+1)(2x-1) find the product

User ManfredP
by
6.6k points

1 Answer

5 votes
difference of 2 perfect squares
a^2-b^2=(a-b)(a+b)
recognize that

(2x+1)(2x-1)
(a+b)(a-b)
therefor
product is
(2x)^2-(1)^2=
4x^2-1
User Konstantin Lyakh
by
6.8k points
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.