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

Last Updated: 17.06.2025 00:28

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

n^2 - n + n - 1

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

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Why do so many people like life?

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

How do people develop stage 4 cancer without noticing until it’s too late?

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n^2 - 1

Why are so many young teenage boys misogynistic? Where do they get these attitudes from?

(n - 1)(n + 1)

Move the nub up to the top:

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Are there any guys, crossdressers, or transgender girls here who wear tampons?

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

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

Is it accurate to say that while Donald Trump has "America First" policy, the Democratic Party has "Other nations first" policy?

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