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

Last Updated: 17.06.2025 00:40

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

(n - 1)(n + 1)

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

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

How should you handle a situation where your friend tells you they like someone who also likes you? Should you tell them or continue as normal?

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

Move the nub up to the top:

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n^2 - 1

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Is love natural, or is it somehow created?

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

Why did Amazon initially deny leave of absence to Alexis Scott-Windham, the Amazon worker who survived the New Orleans terrorist attack?

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

What are some signs that someone may be being stalked by an organization or secret society? How can they find out for sure?

n^2 - n + n - 1