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

Last Updated: 20.06.2025 02:13

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

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

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Why cant I sleep even tho I am sleepy? I am not anxious or worried but my body just doesn't want to. I've been awake for almost 2 days and feel sleepy but I cant sleep. My doctor said its anxiety related but its not. Is this normal?

(n - 1)(n + 1)

n^2 - 1

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What exactly is the difference between a surge protector and a fuse? Can a fuse protect the electronic devices from lightning instead of surge protector?

n^2 - n + n - 1

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Would you date/marry a guy younger than you? If no, why not?

Move the nub up to the top:

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

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What thing happened to you as a child that you haven’t let go of to this day?

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

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Renault CEO and architect of Alpine F1 project stepping down - The Race

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