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 -...
In the 1980s, television began a push to cast teenagers as teenagers. In the 70s, actors in their 20...
Do not pay him anything. Block and stop all communication with him. In my experience helping hundred...
I have had this proceedure carried out three times. I am part of a clinical trial for new treatment...
In Italian, "it's my pleasure" is written as "è un piacere". The pronunciation can be approximated...
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It is very lazy to make such broad generalizations about men/women/blacks/gays/etc.. Everyone is an...
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It appears you are assuming having money, and anything else you could possibly want should guarantee...
Hello,why do you think it's a bat? Bats live in specific environments like rainforest jungle canopy...
Guarda, non sta scritto da nessuna parte che ti debba piacere, anzi in realtà non me ne frega niente...