Why is (n-1)(n+1)=n^2-1?

09.06.2025 02:11

Why is (n-1)(n+1)=n^2-1?

xxx x

xx

xxx x

If Russia needs the resources to fund the war in Ukraine, why doesn’t it throw open its doors to visa free western tourism? Enough people would be interested, & it would start to get some hard currency as €, CHF, £, SEK, $, JPY in the tills at shops.

xxx

n^2 - 1

The basic answer is that you cross-multiply the values in each factor:

Why in my 60s do I have a strong desire to suck cock and swallow?

So, that’s a rectangle with sides 2 and 4.

And you are left with almost a square. One less than the square of side n.

xxxx

Did you become a cuckold for your wife?

xxxx

xxx

(n - 1)(n + 1)

Why do people say "tall, dark, and handsome" when they actually mean "tall, white, and handsome"?

If you cut off the end of that rectangle, you make it smaller, 2 * 3 and a separate nub of size 1 * 2

The more direct answer is to look at a rectangle with sides of n + 1 and n - 1, let’s go with n = 2

Move the nub up to the top:

Why are Democrats at Q so desperate that they keep taking down my links to comments that prove the residents in Ohio have been filing complaints about the Haitians eating the local wildlife from ponds in the local parks? Election interference

n^2 - n + n - 1