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

14.06.2025 00:47

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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My ex got into a relationship within 2 weeks after a breakup. What should I do?

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

Move the nub up to the top:

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What are the most meaningful Jewish jokes that reveal insights about Jewish culture?

(n - 1)(n + 1)

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What seemingly minor decision or moment in your past ended up having a massive impact on your entire life trajectory?

n^2 - 1

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Have you ever seen your wife being fucked?

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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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 are the extra benefits of a smart TV?

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