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

Last Updated: 02.07.2025 03:02

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

(n - 1)(n + 1)

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

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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

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Sorry, Trump supporters, but eventually it will have to be asked: Why didn't Trump do as well in his first term as he is doing NOW?

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

n^2 - n + n - 1

Do Republicans realize that the power of the people is invested in 'representative government'? If so, why did they elect a pathological liar?

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

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Why do I feel so down and not happy anymore? I also feel really tired and non-motivated. Is that normal for someone to feel that way?

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Move the nub up to the top:

n^2 - 1

Why do some people have sex with dogs?

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