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

14.06.2025 04:02

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

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Move the nub up to the top:

n^2 - n + n - 1

If you were a writer for HBO, how would you rewrite the final season of Game of Thrones?

n^2 - 1

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(n - 1)(n + 1)

Can you tell me a depressing story?

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

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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

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

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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What are the causes of over sweating?

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

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