Question

(2n+1)(2n-1) = 0

Answer 1

(2n+1)(2n-1) = 0

Answer 2

n = +-1/2

Answer 3

a^b - b^2 = (a-b)(a+b)

Answer 4

I used that identity

Answer 5

or you could add 1 to both sides

4n^2 = 1

divide both sides by 4

n^2 = 1/4

square root of both sides

n = √(1/4)

what times itself is 1/4?

\[\pm 1/2\]

Answer 6

correct...plus or minus 1/2