Logo

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

12.06.2025 00:14

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

xxx

xxxx

xxx

Atheists, there is a god up there in heaven and he loves you so much that he sent his son to die the worst death imaginable and then to turn into a zombie all to save you from sin. Why do you reject him?

Move the nub up to the top:

n^2 - n + n - 1

xx

Yankees get completely manhandled by Dodgers in ghastly blowout loss - New York Post

xxxx

xxx x

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

Avalanche Signs Nelson - NHL.com

n^2 - 1

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

(n - 1)(n + 1)

What does it mean when we dream about demons, ghosts, monsters, etc.?

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

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

What's the biggest myth about illegal immigrants?

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