Question 742189
Solve and check
a) 2log(x-1) = 2+ log 100
2log(x-1) = 2+2
2log(x-1) = 4
log(x-1) =2=log100
x-1=100)
x=101
check:
2log(x-1)=2log(100)=2*2=4
2+log 100=2+2=4