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

13.06.2025 15:21

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

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n^2 - 1

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

How do I get off Paxil?

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

Do all rocket engines emit harmful gases into the atmosphere during launch?

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(n - 1)(n + 1)

What does it mean when someone leaves something in your house, your room to be exact, and when you tell them, they say they left it there on purpose?

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

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Move the nub up to the top:

USMNT, messy and meek, unravels quickly for its fourth straight defeat - The Washington Post

n^2 - n + n - 1

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What are the different celebrity lists (A-list, B-list, C-list, D-list)? How does one become a part of these lists and move up or down in status?

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