factor completly. do not answer if you dont know it please!! ill give u brainliest

Answer:
(2x+1)(2x−1)
Step-by-step explanation:
4x^2−1
(2x+1)(2x−1)
Answer:
Since both terms are perfect squares, factor using the difference of squares formula, a-b with the little 2 ontop=(a+b) where a= 2x and b= 1. (2x+1)(2x-1)