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

13.06.2025 15:45

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

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

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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Why do women need to wear bras, in spite of the fact that the breasts are an integral part of the body?

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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

Why does my crush always looks at me in a sad way whenever I talk with other boys, and if he catch me staring on him then he go and flirt with other girls and then check if I am looking at him?

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

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

You found a love potion, and your friend tried to use it on an attractive popular girl, but he accidentally dropped it on the neighbors dog. Now the dog won't stop following him. How would you help him?

n^2 - 1

n^2 - n + n - 1

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When did bestiality first occur to you and how did it happen the first time? Was it a deliberate decision or it just happened and you allowed it?

(n - 1)(n + 1)

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Move the nub up to the top:

What sexual experience did you have at a highway rest area?

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