What is 3y to the 4th power divided by 6y to the negative 4 power

1 answer

(3y)^4/(6y)^-4 = 3^4*6^4*y^8
= 104,976 y^8

If you meant
3*y^4/(6*y^-4), that is
(1/2)^4 y^8
= (1/16) y^8

Writing out algebraic terms is not a good idea. You need to show parentheses where needed.