[tex] {a}^{m} \div {a}^{n} = {a}^{m - n} [/tex]
[tex] {a}^{m} \times {a}^{n} = {a}^{m + n} [/tex]
[tex]( {a}^{m}){}^{n} = {a}^{m \times n} [/tex]