Logo

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

13.06.2025 08:10

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

xxxx

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

xxx

Where are the big girls? This is the first time I've seen a bigger lady boy and that's awesome .. you should post more of them here, nothing wrong with a thick black lady

Move the nub up to the top:

n^2 - n + n - 1

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

Webb telescope images frigid exoplanet in strange orbit - Phys.org

(n - 1)(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

Is the Chinese economy currently collapsing? If not, what could potentially cause it to collapse?

xxx x

xxxx

n^2 - 1

How did the trans issue metastasize within just a decade from being a question of kindness and tolerance to a tiny minority to convulsing a whole society?

xx

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

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

My wife admitted to cheating on me with a married man. Should I tell this man and his wife that I know?

xxx