Logarithms, SMB-015 Evaluate `log_x 20` given `log_x 2=0.458` and `log_x 5=0.726`. (2 marks) Show Answers Only `1.642` Show Worked Solution `log_x 20` `=log_x (4xx5)` `=log_x (2^2xx 5)` `=2log_x 2+log_x 5` `=2 xx 0.458 + 0.726` `=1.642`