Question

( 3х^-4/4у^3)^-1• 12х^-3у^2

Answer 1

В приложении............

Answer 2

( 3х^-4/4у^3)^-1• 12х^-3у^2=( 4y^3/3х^-4)• 12х^-3у^2=х^4 *4у^3•y^2*12/ 3х^3 =4y^5 * 4x =16y^5 *x