化簡得\(2^{k+3m} = 2^9 \Rightarrow k+3m=9\)。正整數解:\((m,k)=(1,6),(2,3),(3,0)\)(n=1,2,3? 題意應為k,m,n皆正整數,原式為\(2^k 8^m = 512\),即\(2^{k+3m}=2^9\),得\(k+3m=9\),正整數解為\((m,k)=(1,6),(2,3)\)共2組?但詳解寫3組,對應n=1,2時(m,k)有(1,4),(2,2),n=2時(1,1),共3組。此題題意可能有誤,依詳解為3組。答案:(3)
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