Logo

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

12.06.2025 07:11

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

xxxx

xxxx

xx

ESPN’s Jay Bilas predicts NIL settlement will end transfers: ‘Players aren’t going to go anywhere’ - NJ.com

Move the nub up to the top:

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

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

UNC Falls to Oklahoma, Setting Up Winner-Take-All Finale in Regional - 247Sports

xxx x

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

n^2 - 1

What are some lesser-known facts about Bollywood and the Indian film industry? Are there any insider secrets that only those in the industry would know? How reliable are these claims?

xxx x

xxx

(n - 1)(n + 1)

Dog Disappears for 3 Years—What Happens When He Hears His Owner’s Voice Again Will Melt You - AOL.com

xxx

n^2 - n + n - 1

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 you believe that Jesus was God on Earth?

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