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

10.06.2025 00:05

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

n^2 - 1

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

Move the nub up to the top:

Why does Filipino culture dictate that parents should be treated as gods?

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

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Is Trump a complete idiot?

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(n - 1)(n + 1)

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Is there an MBTI personality that is more or less likely to handle stress?

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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What happens when your partner doesn't see the value in you and continuously hurts you by searching for something in others knowing it hurts you?

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

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n^2 - n + n - 1

Would you let your partner cheat on you every now and again?

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