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

Last Updated: 20.06.2025 00:05

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

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

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

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How do you find out who your handler is as a targeted individual?

n^2 - n + n - 1

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If the world was flat, would it be possible to see Mount Everest if it was on the other side of the Earth on a clear sunny day?

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.

What kind of lights would you like to use for your home decor?

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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n^2 - 1

What does the Bible say about the Antichrist? How will we know when he arrives on the scene?

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Move the nub up to the top:

Ive been pretending to be okay and acting as normal as possible, but Im actually completely heartbroken after a recent breakup. Its painful and really affecting me, to the point where I cant concentrate at work, Ive lost my appetite, I cant sleep, and It feels as if my whole world has been turned upside down. I loved him so much. He said so many cruel things to me and it made me realize he must not have loved me the way I loved him, or he wouldnt have said such horrible things. How do I handle the heartbreak and why cant I accept that he didnt love me and just forget about him?

(n - 1)(n + 1)