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

14.06.2025 01:33

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

(n - 1)(n + 1)

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My religion teacher said that there are no atheists because in order to reject God, you must first have a concept of God, and if you have a concept of God, you are not an atheist. In what way is this true, if at all? Why?

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

Move the nub up to the top:

What would happen if Kakashi and Naruto switched places?

n^2 - 1

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

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Why did Britain steal Gibraltar from Spain?

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

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

What are some ways to identify and avoid logical fallacies, such as straw man and red herring, in an argument?

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Is a man who enjoys anal sex considered a sissy? For those who think so, why can't they be thought of as someone who enjoys a variety of sexual pleasure?

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