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

15.06.2025 01:08

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

n^2 - 1

Move the nub up to the top:

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If my boyfriend watches porn, does it mean he doesn’t think I’m good enough? If I am good enough, why does he still watch? Am I not beautiful enough?

(n - 1)(n + 1)

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

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

Why would the state lie about the Earth's shape? We know that it's flat, but why do they lie and tell us that it is a sphere?

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

What would happen if the US government told the British government in no uncertain terms all RAF bases with USAF personnel now must follow the Constitution and us law, and if the UK tried to defy this, the US military would directly attack the UK?

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

How can a hacker damage me, realistically?

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In bed, not in music, which is better, a drummer or a bass player?

n^2 - n + n - 1