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

15.06.2025 05:32

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

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Move the nub up to the top:

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

Why are American women so ugly nowadays?

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

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Why is Taylor Swift re-recording her albums?

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

What happened to the American Russell Bentley from Texas that was fighting for the pro-Russian commies?

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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

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

Why do men first look at a woman's chest instead of their face?

(n - 1)(n + 1)

n^2 - 1

n^2 - n + n - 1

Which bands became massively popular for covering songs rather than recording originals?

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