Question

log2 x+log4 x+log 16 x=21/4 then x is​

Answer 1

Answer:

Here you use the property of log

log(2x×4x×16x)=21/4

log(128x)=5.25 : 21/4=5.25

128x=log'(5.25)

128x=177828

x=177828/128

x=1389.3