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

Last Updated: 17.06.2025 07:36

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

Move the nub up to the top:

What methods do private investigators use to investigate someone in real life?

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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

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

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How did you respond to, "Why do you love me"?

n^2 - 1

(n - 1)(n + 1)

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How do I complain on a boy coming to marriage with me without my involvement despite no connection with him though he had an illegal affair?

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

n^2 - n + n - 1

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Can you explain the difference between being a conservative Republican and a liberal Democrat? Can you provide some examples of their ideologies?

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