Respuesta :

SOLUTION

From the question, we are meant to simplify (-3ab^3)^4

( Using the Law of Indices )

(-3ab^3)^4 = -3 x - 3 x -3 x - 3 x a x a x a x a x b^3 x b^3 x b^3 x b^3

= 81 x a ^ 4 x b ^12

= 81a^4b^12