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

Last Updated: 20.06.2025 19:46

The basic answer is that you cross-multiply the values in each factor: (n - 1)(n + 1) n^2 - n + n -...

The odd effects a year in space has on the bodies of astronauts - supercarblondie.com

Last Updated: 20.06.2025 19:57

NASA astronaut Frank Rubio spent a year in space and, when he came back, he found out the hard way w...

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Researchers looked at a gene that is critical to regulating the body’s iron levels.

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