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

Last Updated: 20.06.2025 11:10

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

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

(n - 1)(n + 1)

What is the moral stance on lying? Can you provide examples of when it is appropriate or inappropriate to lie? Does the Bible address this issue?

Move the nub up to the top:

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

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Do you ever feel like you are doing good, but would do better if people hadn’t blamed you or even bothered you? I have gotten lonely, but I always am up to something (creating my destiny).

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What could be the result if I block a covert narc back after he said blocks were going back up, maybe we try this again?

n^2 - 1

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Are there any political parties or groups that have a mix of conservative and liberal beliefs? Why are they not as prominent in the media?

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n^2 - n + n - 1

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

What are the pros and cons of banning homosexuality?

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