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

Last Updated: 17.06.2025 02:23

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

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Move the nub up to the top:

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

Why am I so unproductive when it's a holiday the next day?

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

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n^2 - 1

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Is it possible that my TF caused a kundalini awakening in another person? He is famous because He is a singer. We have not met physically yet, but I have gone through kundalini awakening and DNOTS and their ongoing. I have also had soul recognition so I know for sure that He is my Divine Counterpart and I do not have any doubts about it. But it is indeed perplexing that somebody had an awakening at the physical level because of Him. Is it a test for me? I have a mixture of feelings. On one hand I marvelled at Him and empathised with the person and on the other, I doubt if this just a test for me. I would appreciate your pov. Thank you for much.

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

(n - 1)(n + 1)

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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n^2 - n + n - 1

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

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