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

12.06.2025 04:06

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

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

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

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n^2 - n + n - 1

Why cant I sleep on my side after getting my covid vaccine? I just got the shot and I’ve been overstimulated from not being able to sleep, my arm is very sore and it hurts so much to move and I just want to sleep but it hurts if I lay on either side

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

(n - 1)(n + 1)

Move the nub up to the top:

When did bestiality first occur to you and how did it happen the first time? Was it a deliberate decision or it just happened and you allowed it?

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

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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Would you raise your children like your parents raised you?

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

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n^2 - 1

Why do some people admire Latin American cultures but not want to be from or live in those countries?

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