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

14.06.2025 04:41

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

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(n - 1)(n + 1)

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How do you handle family members who ask for handouts?

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

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Can cheating be a result of not truly loving or caring for someone, or is it sometimes just a spur of the moment decision?

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

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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

Are you more of a butt guy or a boob guy?

n^2 - 1

Move the nub up to the top:

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What is the reason behind the Russian government's negative view on foreign travel?

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

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

Why is watching a man and a woman have sex considered perverted? It's how we all got here, it's what we do, I say if you want to watch porn then carry on!

n^2 - n + n - 1