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

Last Updated: 24.06.2025 03:09

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

n^2 - 1

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Why are we explaining today’s “climate change” as driven by human related “green house” gasses when natural “global warming” pushed sea level up to the “shores” of Topeka with no human contribution or even presence? Is Occam’s Rasor applied?

n^2 - n + n - 1

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

Move the nub up to the top:

What is the most clever way you have seen someone respond to road rage?

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(n - 1)(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.

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What are some things you would change about Avatar: The Last Airbender if you were to redo the series?

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

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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