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

The basic answer is that you cross-multiply the values in each factor: (n - 1)(n + 1) n^2 - n + n -...
The basic answer is that you cross-multiply the values in each factor: (n - 1)(n + 1) n^2 - n + n -...
I think it went something like this. Hey, have you heard of this new band, Nickleback? Their first a...
No human needs to worry about calories, at all, ever. It is not a measure of how healthy or unhealth...
*If you are commenting with an answer to the original question, you need to click on the question, t...
I'm glad you asked this ,but since no one else i know seems to think its a good idea , ill share it...
⚜️Yamraj, Yamuna, Tapi and Shani - these are said to be the children of Lord Surya🌞. Due to some re...
Trump didn’t fully spell out what concessions the U.S. made. Beijing has not confirmed what the nego...
Well, I'll get my opinion on this because I'm on the treadmill and I need something to do and I don'...
so you want to prove that she is right in calling you names by calling her names back, proving that...
To have a Mistress set me up for diaper dependence training and mental breaking lasting a minimum 90...
I can give you many reasons 1. Men don’t want to be a retirement plan of a weasel. Unsurprisingly,...
Oh Sweetie, it’s going to get much, much worse before it gets any better. But the primary reason is...