Logo

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

Last Updated: 17.06.2025 13:49

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

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

xxx

Move the nub up to the top:

What are some hard rock or heavy metal bands that are overrated?

xxx x

n^2 - n + 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

LeBron James’ message for Caitlin Clark after dominant return from injury - New York Post

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

xx

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

A 35-year-old Florida man booked more than 120 free flights by posing as a flight attendant - Fortune

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

xxxx

n^2 - 1

Why can’t my wife just accept the fact that I’m going to cheat?

(n - 1)(n + 1)

xxx

xxx x

My son is possessed, now he has psychosis. Can someone help me?

xxxx