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

Last Updated: 18.06.2025 23:51

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

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

Why are black people harassed more by police officers?

Move the nub up to the top:

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

Why are you bare-nakedly displaying your anti-Trump bias while ignoring the liberals' destruction of the US? I am now blocking your e-mails because of your biased articles.

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n^2 - 1

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

Did your siblings abuse you growing up? Not your parents, specifically your siblings, or other children in the household you were raised with.

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n^2 - n + n - 1

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How far back into your childhood can your remember and what is your favorite memory of that time?

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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

Is there a possibility that we are living in a simulation and that there is a concept of rebirth?

(n - 1)(n + 1)