Why is (n-1)(n+1)=n^2-1?
10.06.2025 07:53

xxx x
The basic answer is that you cross-multiply the values in each factor:
And you are left with almost a square. One less than the square of side n.
Do flat Earthers really exist? Why do they believe the Earth is flat?
xx
xxx x
xxx
n^2 - 1
xxxx
Move the nub up to the top:
Pacers’ Tyrese Haliburton stuns Thunder in last second to open NBA Finals - The Washington Post
xxxx
xxx
(n - 1)(n + 1)
What blowjob techniques do you use for your man to cum inside your mouth?
If you cut off the end of that rectangle, you make it smaller, 2 * 3 and a separate nub of size 1 * 2
So, that’s a rectangle with sides 2 and 4.
n^2 - n + n - 1
How to reduce your risk of melanoma and other skin cancers - KSLTV.com
The more direct answer is to look at a rectangle with sides of n + 1 and n - 1, let’s go with n = 2