Logo

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

Last Updated: 19.06.2025 04:47

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

n^2 - 1

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

Do Republicans want to ban books and decide what your kids can and can’t read?

xxxx

xxx x

xxx x

Why are Christians quick to say that there are a lot the gay Christians that exist NOW and use that to pretend that Christianity is just loving to gays when the last 40 years of my life they been horrible?

xx

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

n^2 - n + n - 1

Why do liberals think same-sex marriage is alright? The Bible makes it very clear that it's not alright to be gay, why can't liberals understand that?

xxx

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

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

What do men find attractive in an older woman?

Move the nub up to the top:

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

xxxx

Is there anything you did that you regret? If so, what is it, and why?

(n - 1)(n + 1)