已知X^（2m）=2,X^(n)=5 (1)X^(6m) （2)X^(4m+2n)

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(1)X^(6m)=[X^(2m)]^3=2^3=8
(2)X^(4m+2n)=X^(4m)*X^(2n)={[X^(2m)]^2}*[X^(n)^2]=2^2*5^2=4*25=100

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