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

14.06.2025 16:03

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

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(n - 1)(n + 1)

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

Do conservative white women like black men?

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Move the nub up to the top:

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Why did my ex of 2 years move on so fast after he left me? Why does he act so cold towards me, and as if I don't exist?

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n^2 - n + n - 1

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Why do people hate Nickelback so much? What makes them different from other popular bands like Linkin Park, Green Day, etc.? Is it just because they're Canadian or what?

n^2 - 1

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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

How do flat earthers explain the Earth being stationary? Is this concept considered impossible?

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

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

If our normal body temperature is 98.6 degrees Fahrenheit, why do we perceive weather in the 90s as "hot?"

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