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

Last Updated: 17.06.2025 06:58

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

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

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n^2 - n + n - 1

Why don’t people show patriot Donald Trump the respect he deserves? He’s successful in business, politics, and with the ladies.

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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

n^2 - 1

Why is there no great temptress figure in any of Tolkien’s major works?

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

(n - 1)(n + 1)

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?

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Move the nub up to the top:

Why am I so jealous towards couples? Why am I tired of being single and feel my life is over?

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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

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

What would happen if Kakashi and Naruto switched places?

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