Question

Please help me please

Answer 1

${a}^{ - m} = \frac{1}{ {a}^{m} }$

$(a {}^{m} ) {}^{n} = {a}^{ mn}$

${a}^{m} \times {a}^{n} = {a}^{m + n}$

${a}^{m} \div {a}^{n} = {a}^{m - n}$