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

Last Updated: 20.06.2025 08:46

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

n^2 - n + n - 1

n^2 - 1

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

McDonald’s Settles $10B Discrimination Lawsuit Brought by Byron Allen’s Media Company - The Hollywood Reporter

xxxx

Move the nub up to the top:

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

Why can't NASA just bite the bullet and launch a plainly simple mission, audited by flat earther peers start to finish that definitively proves to even the smallest minds that the earth is an oblong spheroid, and not flat?

(n - 1)(n + 1)

xxx x

xxx

A Game-Changing Telescope Is About to Drop First Pics. Here's How to Watch. - ScienceAlert

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 do Darwin atheists not like facts of Genesis? I’ve noticed they block and dismiss everything a person states. Is that how science works to hide when a truth comes at them?

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

xxxx

Were Dalits prohibited from drinking water from wells in ancient times? Is there any evidence to support this claim?

xxx x