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

Last Updated: 18.06.2025 14:17

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

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n^2 - 1

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Can you give an example of a documentary where the person telling the story believed it to be true, but it turned out to be false?

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

Why doesn't California have the tools, people, means to put out these fires even though they know there will be fires every year?

n^2 - n + n - 1

(n - 1)(n + 1)

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What it is like to have sex with a relative woman?

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

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Why do people who aren't trans feel the need to put pronouns next to their name or picture? It seems so cringeworthy to me, to participate in that SJW paradigm of thought, like they are a spineless person who just goes along with the trends.

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

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

Move the nub up to the top:

Why do very skinny girls get more male attention if it is true that men like curves?

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