If logx625 + log381
= 8; find x
solution
logx625 + log381
= 8
logx625 + log334
= 8
logx625 + 4log33
= 8
logx625 + 4 x 1
= 8
logx625 + 4 = 8
logx625 = 8- 4
logx625 = 4
625 = x4
54 = x4 Powers cancel out
x = 5
Hence x = 5.
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