Question

Решите срочно даю 50 балоа

Answer 1

3.=(-3/5)^2а^6х^8*(-2/3)^3а^3х^4=

=-8/75а^8х^12

4.(-3а^3у^4)^2*(z^4)^3=-9a^6y^8z^12

1. =(7^5*7^56)/7^59=7^61)7^59=7^2=49