Logo

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

10.06.2025 06:34

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

xxxx

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

xxx

Women's College World Series: Tennessee walks off UCLA in extras to survive controversial ruling - Yahoo Sports

n^2 - 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

Move the nub up to the top:

Tesla just lost the head of its robotics division - The Verge

xxx

xx

xxxx

Jared Leto denies sexual misconduct allegations from multiple women, some who say they were underage - Entertainment Weekly

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

xxx x

n^2 - n + n - 1

Trump signs proclamation banning travel from 12 countries - ABC News

(n - 1)(n + 1)

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

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

Do older men realize that younger women usually do not prefer them?

xxx x