Logo

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

11.06.2025 05:33

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

xxx x

xxxx

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

Why would my husband cheat on me with an ugly fat woman?

n^2 - n + n - 1

xxxx

xxx

Finance leaders fear destructive U.S. debt scenario - Axios

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

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.

What do you think of casting Emma Watson as the next James Bond?

xxx x

Move the nub up to the top:

xxx

NYC summer stargazing seasons kicks off with triangle, meteor showers - Gothamist

n^2 - 1

xx

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

What is the meaning of "ero" in Japanese?

(n - 1)(n + 1)