Respuesta :

Answer:     1/81

Step-by-step explanation:

Step 1.) To express it as a positive exponent, rewrite it as a reciprocal.

Step 2.)  Now you have ( 1 / -3 )4

Step 3.) Express it as a quotient of powers.    = (1)4 / (-3)4

step 4. Simplify.  =  1/81