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

Last Updated: 16.06.2025 03:39

Why is (n-1)(n+1)=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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California schools are very liberal. Do you think California schools are teaching students to hate Republican views (views on: God, guns, prayer, secure borders, etc.)?

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

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(n - 1)(n + 1)

Everyone says the pet population is out of control. Everyone says you MUST spay or neuter your pets. No one wants to talk about how its almost $1,000 to spay or neuter a pet. Why is it so expensive if its so necessary? Animal shelters do it for free.

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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n^2 - n + n - 1

Why do older people have a hard time using technology?

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

Why is my older sister so mean to me as if I was her enemy?

n^2 - 1

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

Move the nub up to the top:

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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