Step-by-step explanation:
Dod you mean
[tex] = \frac{ {n}^{5} }{ {n}^{ - 2} } \times \frac{ {n}^{2 - 6} }{ {n}^{8} } [/tex]
[tex] = {n}^{5 - ( - 2)} \times {n}^{2 - 6 - 8} [/tex]
[tex] = {n}^{7} \times {n}^{ - 12} [/tex]
[tex] = {n}^{7 + ( - 12)} [/tex]
[tex] = {n}^{ - 5} = \frac{1}{ {n}^{5} } [/tex]
