Relax

Respuesta :

Esther

Answer:

[tex]81r^{12}s^8[/tex]

Step-by-step explanation:

[tex](-9r^6s^4)^2=(-9r^6s^4)*(-9r^6s^4)[/tex]

[tex]81r^{12}s^8[/tex]

Hope this helps!