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

Last Updated: 18.06.2025 09:14

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

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n^2 - 1

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Have you ever accidentally found out that you were about to be fired?

(n - 1)(n + 1)

n^2 - n + n - 1

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It’s been over a month since I stopped taking sertraline but why do I still feel side effects like brain zaps and anxiety mood changes? The root cause of anxiety it’s your thinking and I perfectly master that better than before so it’s hard lately.

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

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

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

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

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How would you feel if your friend confided in you that she is cheating on her husband, knowing that he loves her deeply? What emotional and ethical considerations would you grapple with in response to her revelation?

Move the nub up to the top:

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

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When Kundalini is awakened accidentally, what can be done?

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