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

Last Updated: 18.06.2025 03:05

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

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

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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Has Great Britain ever been considered a "hyper-power" like the United States or Russia are currently considered? If not, why?

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(n - 1)(n + 1)

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.

Move the nub up to the top:

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

When British people write X after everything, are they being serious or trying not to be awkward?

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

Do straight guys like to see cocks?

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

n^2 - n + n - 1

n^2 - 1

How do I cope with the fact that I will never have a girlfriend?

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