Answer
Answer:
$4x^{2}$ -1
Work Step by Step
(2x + 1)(2x - 1)
This can be put in a generalized statement:
(a + b)(a - b) = $a^{2} - b^{2}$.
Comparing the statement wth our expression,
a = 2x and b = 1.
Thus, (2x + 1)(2x - 1) = $(2x)^{2} - 1^{2}$ = $4x^{2}$ -1.
