Logo

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

10.06.2025 05:13

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

xxx x

xxxx

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

I have a black elbow sleeve leotard that I wear with sheer pantyhose. Should I keep my pants off and show my legs?

xxx x

xx

xxxx

Since the Brits can't steer their oil tanker, what makes them think they can take on Russia?

n^2 - n + n - 1

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

Move the nub up to the top:

‘This is a tragedy:’ UW doctor pushes back against RFK Jr.’s COVID vaccine recommendations - MyNorthwest.com

n^2 - 1

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.

Why cant a narcissist admit when they are wrong?

xxx

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

(n - 1)(n + 1)

What's your wildest & weirdest fantasy?

xxx