Answer:
[tex] \frac{ - 1 {n}^{7} }{8} [/tex]
Step-by-step explanation:
1.) expand the denominator
[tex] ( - 2 {n}^{4} ) ^{3} [/tex]
[tex] { - 2}^{3} {n}^{4 \times 3} [/tex]
[tex] = - 8 {n}^{12} [/tex]
2.)simplify
[tex] {n}^{5} \div - 8 {n}^{12} [/tex]
[tex] = \frac{1}{ - 8 {n}^{ - 7} } [/tex]
[tex] = \frac{ - 1 {n}^{7} }{8} or \: \frac{ {n}^{7} }{ - 8} [/tex]
