Logo

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

11.06.2025 00:50

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

xxxx

Move the nub up to the top:

xxx x

Whole Foods is opening new stores in 2025: See locations - USA Today

xxx x

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

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

What shocking family behavior did you read about in India?

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

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

Have you ever been instructed/forced to crossdress for the benefit of others?

xxxx

(n - 1)(n + 1)

n^2 - n + n - 1

How did Madri, mother of Nakula and Sahadeva die?

xxx

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

xxx

What is the dirtiest thing you have allowed your husband to do?

xx