1.

If m = log 20 and n = log 25, find the valueof x, so that : 2 log (x - 4) = 2 m - n.​

Answer»

Answer:

X = 8

Step-by-step EXPLANATION:

as 2*LOG20 - log 25 = log 400- log25

                                 =   log400/25

        2*log(x-4)= log 16

log(x-4) = log 16 / 2

   log x-4 = log 4

x-4 =4

x=8



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