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

12.06.2025 11:07

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

Move the nub up to the top:

n^2 - 1

xxxx

Why do Democrats keep calling Patriots/President Trump supporters "sore losers"? Do they purposefully ignore the massive fraud that took place, or genuinely think that there was zero fraud?

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

xx

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

T Cells Found Living in Healthy Brains - Neuroscience News

xxx

xxx

xxx x

Democrat voters, why are you so naive, easy to manipulate, can't see a liar standing right in front of you and why won't you research your party? You will find they have a plan for all W. Nations and it's evil.

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

xxxx

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

How do I come out as queer to my best friend in a funny and stupid way?

n^2 - n + n - 1

xxx x

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

Why does Rahul Gandhi have so many haters?

(n - 1)(n + 1)