Last Updated:

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 -...

Last Updated:

Fugiat rerum itaque dolorem rem.

Quibusdam commodi quasi aliquam. Ea in dicta et non. Itaque omnis reprehenderit sint laborum. Fugit...