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

13.06.2025 00:08

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

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n^2 - n + n - 1

How do I beat domestic battery charges against my covert narcissist husband who is lying and playing the victim?

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

(n - 1)(n + 1)

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Why do women consider 80% of men as unattractive?

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

n^2 - 1

How many women have accidentally pooped their pants and became turned on afterwards?

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

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

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Move the nub up to the top: