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

10.06.2025 00:54

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

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(n - 1)(n + 1)

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

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

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What should you do if a police officer comes to your house and asks for someone who doesn't live there anymore?

n^2 - 1

n^2 - n + n - 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

What is chudai?

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

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Do all you people that took the "jab" feel lied to yet?

Move the nub up to the top:

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I can’t get any girl I want, but I can just get some not my type of girls, so I feel I’m so ugly. What should I do?

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