Question

已知2乘以8的n次方=4的2m次方,求m.

Answer 1

2*8^n=4^(2m) 2*(2^3)^n=(2^2)^(2m) 2*2^(3n)=2^(4m) 2^(3n+1)=2^(4m) 3n+1=4m m=(3n+1)/4 给个“能解决+原创"!