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

Last Updated: 20.06.2025 00:30

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

Move the nub up to the top:

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My wife always forces me to suck my bulls dick and balls and even Lick his cum from her face and tits and they even humiliate me very badly plus she always talks about big Dicks everywhere everytime and show me pics of huge cocks what should I do ?

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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

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n^2 - 1

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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What is your worst experience in life?

(n - 1)(n + 1)

n^2 - n + n - 1

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

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