Logo

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

Last Updated: 18.06.2025 11:45

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

xx

n^2 - 1

xxx x

I've played The Outer Worlds 2, and this Xbox RPG seriously improves on its predecessor in one big way - Windows Central

xxxx

Move the nub up to the top:

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

What are your thoughts on Italian nationalist poet Gabriele D'Annunzio, who was the subject of the documentary "Fiume o morte!"?

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

xxxx

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

Appendix Cancer Rates Climb Among Millennials and Gen X - Newser

xxx

xxx x

xxx

What are the easiest stores for shoplifting?

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

n^2 - n + n - 1

(n - 1)(n + 1)

A Rocket That Crashed on the Moon in 2022 Wasn't Musk's—New Study Reveals Its True Origin - Jason Deegan

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