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

Last Updated: 16.06.2025 12:38

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

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What are the most significant instances of romantic jealousy in the Harry Potter series?

(n - 1)(n + 1)

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Move the nub up to the top:

Why was Cars 2 so bad?

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

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

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How long can someone with narcissistic tendencies maintain a facade of fake love before their true self is revealed? Is there a specific trigger or amount of time that causes them to reveal their true nature?

n^2 - 1

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Delta Force selection is originally based on SAS selection, so why is there no brutal jungle phase for Delta Force? It seems like it's based only on the Brecon Beacons section.

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:

n^2 - n + n - 1

What is your review of "Regent", episode 5 of Season 2 House of the Dragon?

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