Logo

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

09.06.2025 06:13

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

Move the nub up to the top:

(n - 1)(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

In your humble opinion, why does the narcissist mistake kindness for weakness in some people?

xxx x

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

xxx

Whenever I write a novel, I struggle with the end, should I make it open? Should the good win or the bad win? Sometime I don't even have an ending, what should I do?

xxxx

xxx x

xxx

Is it true that in 2028 there will be a new AIDS variant that will wipe out all the LBGTQ+ people?

xxxx

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

xx

Washington Post Planning to Bring in ‘Nonprofessional Writers’ Coached by an AI Editor With a ... - Mediaite

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

n^2 - n + n - 1

n^2 - 1

Nintendo Switch 2 Welcome Tour Review - IGN

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