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

Last Updated: 28.06.2025 03:22

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

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

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

I am skinny, I have been doing 100 pushups a day for more than a month and am seeing very few results, everything is so unfair, I workout more than anyone I know and am still skinny, why cant I build muscle?

Move the nub up to the top:

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n^2 - n + n - 1

Is there a musician who has publicly stated that they do not want their music played by the Trump campaign or at a Trump rally? If so, who and why?

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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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What started the whole idea of femboys? What is the whole point of a femboy? Did a boy or a man just randomly start dressing or acting feminine or something?

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

(n - 1)(n + 1)

While emptying a house, have you ever seen something in it that blew your mind?

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n^2 - 1

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Do crossdressers like wearing pantyliners and tampons in their butts?

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