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

15.06.2025 13:51

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

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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

Was Adam white or black (African)?

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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

Why am I so afraid that gun owners have set traps to kill me outside my house or my car?

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

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

How can I remove decimals in math?

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n^2 - 1

What does it mean if you dream your dad died?

n^2 - n + n - 1

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

(n - 1)(n + 1)

Do foreign workers face discrimination in Canada?

Move the nub up to the top: