Logo

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

10.06.2025 14:44

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

n^2 - n + n - 1

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

xxxx

How do flat Earthers explain the existence of other spherical planets?

n^2 - 1

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

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

Why do some people hesitate to say 'I love you' even after their partners have said it first? How can one interpret this behavior from their loved ones?

xxxx

xxx

xx

Midea is recalling its U-shaped air conditioners because of potential mold growth - The Verge

xxx

Move the nub up to the top:

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

What Happens to Your Blood Pressure When You Drink Energy Drinks Every Day? - Verywell Health

(n - 1)(n + 1)

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

xxx x

Has anyone liked being made a cocksucker?

xxx x