(-64)^(-4)=1/(-64)^4=1/2^(6*4)=2^(-24)
8^3=(2^3)^3=2^9
16^3=(2^4)^3=2^12
2^(-24)*2^9*2^12=2^(12+9-24)=2^(-3)=1/8
(-64)^(-4)=1/(-64)^4=1/2^(6*4)=2^(-24)
8^3=(2^3)^3=2^9
16^3=(2^4)^3=2^12
2^(-24)*2^9*2^12=2^(12+9-24)=2^(-3)=1/8