Logo

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

10.06.2025 01:25

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

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

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

xx

Why did I move on so fast from a relationship that was my whole life and I was so attached, I moved on by 2 months?

xxxx

xxx

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

Destiny 2 Reveals Major Armor Stats Overhaul Coming In The Edge of Fate - The Game Post

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

n^2 - n + n - 1

xxxx

Have you ever secretly watched someone while they were doing something private?

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 x

(n - 1)(n + 1)

Paramount Global to Add Three New Board Directors As It Deals With Trump Lawsuit, FCC Review - The Hollywood Reporter

Move the nub up to the top:

n^2 - 1

xxx

The biggest binoculars we've ever tested: Celestron SkyMaster 25x100 hands-on review - Live Science

xxx x