simplify and write using only positive exponents. thanks.

Question

(2x^3y^4)^-2 divided by (8xy^6)^-3

Answer 1

[ 8^3 x^3 y^18 ] / [2^2 x^6 y^8 ]

[ 2^9 / 2^2 ] [ x^-3] [ y^10 ]

[ 2^7 ] y^10/x^3

128 y^10/x^3