Question

Solve: 72 = logx x = 72 ÷ log1 x = 7210 x = 1072

Answer 1

$\log_ab=c\iff a^c=b\\\\Domain:\ x > 0\\\\\log x=72\to\log_{10}x=72\iff x=10^{27}\in D$

Answer 2

The correct answer on edg. is C. x=10^72 :)