Last Updated:

Can you share summer photos? Day 8

πŸ¦‹πŸ¦‹ Pompano Beach, FL πŸ¦‹πŸ¦‹ Home sweet Home….Everyday is Summer! β˜€οΈπŸŒ€πŸŒ»πŸ–πŸ•Ά

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 -...