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Answer:
2^(-20)
Step-by-step explanation:
8^(2/3)=2^(3×2/3)=2^2=4
32^(2/5)=2^(5×2/5)=4
So,x=8^(2/3).32^(2/5)=4×4=16=2^4
Then, x^(-5)=2^[4×(-5)]=2^(-20)