Question

find x if : 128.2^x-1=0.

Answer 1

Your answer-:::

Take log on both sides

then ,

xlog(128.2)= log1

log 1is 0 and log128.2 is 2.107

so x*2.107=0

so x= 0

Answer 2

Answer:

Hope you understand...

this can also be solved by log