1)=2^(8m-10) *6^2m /(2^5 *3)^(2m-3)=2^(8m-10) *3^2m *2^2m /2^(10m-15)*
*3^(2m-3)=2^(10m-10)*3^2m /2^(10m-15) *3^(2m-3)=2^(10m-10-10m+15) *
*3^(2m-2m+3)=2^5 *3³=32*27=864
2)=(2³*3)^(k+1) /2^7 *2^(2k-2) *3^(k-2) *2^(k-2)=2^(3k+3) *3^(k+1) /
/2^(3k+3) *3^(k-2)=3^(k+1-k+2)=3³=27