find the product. simplify your answer. (2b + 1)(2b - 1)

Explanation:

Step1: Recognize difference of squares

$(a+b)(a-b)=a^2-b^2$, here $a=2b$, $b=1$

Step2: Apply formula

$(2b)^2 - (1)^2$

Step3: Simplify terms

$4b^2 - 1$

Answer:

$4b^2 - 1$