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

15.06.2025 07:15

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

(n - 1)(n + 1)

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

Why do men like women gold diggers?

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

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How do so-called Religious/Christian people really think homosexuality is even a sin? That would be nonsense. In fact, LGBT people need love instead of contempt/hatred. The word Homosexual didn't appear until the 1850s.

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

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n^2 - n + n - 1

What does it mean to live "the 'underconsumption' life"?

n^2 - 1

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Move the nub up to the top:

During the Atlmark incident in 1940, the Brit war criminals violated Norwegian neutrality. Hitler could then justify invading Norway. Have the Brits ever apologized for violating Norwegian neutrality?

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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 do we often have strong feelings for our twin flames, even if they don't feel the same way? Is there a way to make them realize their true feelings for us?

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