Logo

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

Last Updated: 18.06.2025 04:53

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

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

xxxx

(n - 1)(n + 1)

How do I cope with the fact that I will never have a girlfriend?

xxx x

xxx x

n^2 - 1

Why We Still Can't Find A Solar System Twin - IFLScience

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

xx

xxxx

Have you or anyone you know invested in cryptocurrencies before? If so, which one did you invest in and how much profit did you make?

Move the nub up to the top:

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

Why do many modern Hollywood films rely heavily on CGI and visual effects instead of actual sets? What is your opinion on this trend?

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

xxx

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

Why is there no evidence of a multiverse theory?

n^2 - n + n - 1