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

Last Updated: 17.06.2025 02:44

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

n^2 - n + n - 1

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Do Flat Earthers exist today? If so, where do they live?

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

Move the nub up to the top:

Why has Biden pulled ahead in battleground states and is now projected to win the 2024 presidency?

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

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

How do I deal with autistic burnout/meltdown/shutdown when cooking?

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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

Why should the US public listen to Lauren Boebert, the queen of hypocrisy tell us, "We need morals back in our nation" when her real-time video is the heartbeat of immoral? Why does her audio not match her video?

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(n - 1)(n + 1)

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

I'm looking for an answer from people who consider themselves "Gender Critical", or transphobic, or TERFs, and my question is this - Why would you refuse to use the pronouns someone wants? What does it cost you? Where's the harm?

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