The equation logx24logx5 0 has the solution 28 The equation

The equation (logx)^2-4logx-5 =0 has the solution:

28. The equation (iog xy -4g-5-0 has the solution: 10 10 C. x-1000 D. No Solution Exponerii arnd Lograk Functions Practice Exarn

(logx)^2 - 4logx -5 =0

factosrise above quadratic equation :

(logx)^2 - 5logx +logx - 5=0

logx[ logx - 5] + 1[ logx - 5]=0

( logx +1)( logx - 5) =0

logx = -1; x= 0.1

logx = 5 ; x= 10^5 = 100000

Solution : x=0.1 , 100000