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

Last Updated: 18.06.2025 11:13

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

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Move the nub up to the top:

n^2 - 1

What is the reason for the high number of stray dogs in Thailand? What measures are being taken to address this issue?

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

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Why do Democrats call any Republican "Magats", like they are subhuman?

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

Isn't it ironic people always talk about how much women hate Donald Trump, when almost any of them would marry him if they could? What he said in the 2005 Billy Bush video, almost every woman would share the sentiment if it got them his lifestyle.

(n - 1)(n + 1)

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What makes Nigerian scammers skilled at impersonating people? Is their success a result of intelligence or other factors?

n^2 - n + n - 1

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

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

How can someone effectively handle a targeted individual?

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