Logo

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

10.06.2025 20:14

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

xxx

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

xxxx

Jason Sudeikis Remembers Uncle George Wendt as “an Incredible Influence” - The Hollywood Reporter

xxx x

xxx

xxxx

How do I become a Buddhist, and can someone explain Buddhism to me?

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

xx

n^2 - 1

What one thing makes someone a very mature person?

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

xxx x

Move the nub up to the top:

How do we write and pronounce "it's my pleasure" in Italian?

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 - 1)(n + 1)

n^2 - n + n - 1

Have you experimented with bestiality?

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