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

Last Updated: 20.06.2025 00:01

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

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

xxxx

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

Are fanservice-y characters (i.e. Lara Croft, Tifa Lockhart) immediately bad?

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

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

xxx x

My girlfriend told me that she wants to move in with me. I have my own apartment and I like my peace and quiet, but I also love her. We've been together for a year now. What should I do?

xxx

(n - 1)(n + 1)

xxx x

What does it mean if I had a dream about my mom who passed 12 years ago waking up from her coma and asking for my dad? I have never had a dreams about her since she has been gone.

n^2 - 1

xxxx

Move the nub up to the top:

Inside J.J. Spaun's Arizona Home as He Claims Surprising U.S. Open Win - Realtor.com

xxx

xx

n^2 - n + n - 1

If the Red Pill is supposed to be so bad, why are so many young men buying into it? What about Red Pill makes it appealing to them?

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