Question 976134
4x^-3) * 4z *y^-4*w^2

One error is  4x^-3.  This has to be written carefully, for (4x)^-3 is very different (1/64x^3).  You want 4 in the numerator/x^3 in the den.

4x^-3 *4z  because divide by 2^-2 is to divide by 1/4 or multiply by 4  /y^4

x^-3 is 1/x^3

4*4 is 16

Leave the 4 alone and recognize that dividing by 2^-2 is another 4, and your numerator will be 16.


Put them together:  {16 z/x^3} * {w^2/y^4}