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

11.06.2025 08:19

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

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

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n^2 - 1

Can a hoodoo or candle spell be used to remove a love spell placed on someone by another person? What is the difference between voodoo and hoodoo?

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Have you ever had sex with your female cousin? How did it start?

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

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

What is the happy reality of our generation?

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

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My ex moved on so fast. How can I overcome the pain?

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(n - 1)(n + 1)

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

Why do people keep complaining about how some people copy and paste the question before answering it? To me, it's very disturbing and makes me want to block and mute them as annoying whiners.

Move the nub up to the top: