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

14.06.2025 13:47

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

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Move the nub up to the top:

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Why is fitness important?

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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.

What do you think of the Quora group "It's Ok to Be White" for people who are proud of being white?

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n^2 - 1

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

What's the most trivial thing that ever made you go to the doctor?

(n - 1)(n + 1)

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

How do I beat domestic battery charges against my covert narcissist husband who is lying and playing the victim?

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n^2 - n + n - 1

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

Who believes that Speaker Mike Johnson will certify ‘a free and fair and legal election'? Who believes that Speaker Mike Johnson will NOT certify ‘a free and fair and legal election'? Why?

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