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

11.06.2025 09:32

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

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n^2 - 1

Democrat voters, why are you so naive, easy to manipulate, can't see a liar standing right in front of you and why won't you research your party? You will find they have a plan for all W. Nations and it's evil.

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

(n - 1)(n + 1)

What firsthand information do you have on prisoner-on-prisoner sexual abuse/rape?

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n^2 - n + n - 1

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

If you were to bet, will Canada bend over to Trump's America demands or remain inflexible until the last day of his Presidency on January 20, 2029? Will America or Canada win this geopolitical arm-wrestling? I'm rooting for America.

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

Move the nub up to the top:

Is it possible to become homeless after being released from jail or prison in the United States?

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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How do you help patients stop hearing voices?

The more direct answer is to look at a rectangle with sides of n + 1 and n - 1, let’s go with n = 2