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

15.06.2025 02:54

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

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

Why can’t the British eat or drink anything unless they place a table cloth on the table first?

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(n - 1)(n + 1)

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

Is love natural, or is it somehow created?

n^2 - 1

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

n^2 - n + n - 1

How do flat Earthers explain the existence of other spherical planets?

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Move the nub up to the top:

Why do women stubbornly refuse to let men lead, even though they are attracted to the man, and the man both loves and desires them? Why do they get angry and blame the man when he gets fed up and walks away, when it's entirely their own fault?

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

If you cut off the end of that rectangle, you make it smaller, 2 * 3 and a separate nub of size 1 * 2

Why wasn't Queen as successful in America as in other countries? Then, after Radio Ga Ga, they couldn't even get into the top 40 in America even when these songs were top 10 hits everywhere else in the world.

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