Exponents show all work please

Question

Simplify  Show work. Make sure that your final answer has no negative exponents

 

(-4m^-2n^-3)(nm)³

Answer 1

(-4m^-2n^-3)(nm)^3

-4(m^-2n^-3)(n^3m^3)

-4(m^-2)(m^3)(n^-3)(n^3)

-4[m^(-2+3)][n^(-3+3)]

-4(m^1)(n^0)

-4(m)(1)

-4m is the answer

Answer 2

Theresa,

 

(- 4*m^-2 * n ^-3) / (nm)^3

 

(-4 * 1/m^2 * 1/n^3)  /  n^3 *m^3

 

(-4/m^2*n^3) * 1/ n^3*m^3

 

-4 / m^5* n^6

 

-4*m^-5*n^-6

 

-4m^-5n^-6