answer the logarithm question
Attachments:
Answers
Answered by
1
Answer:
x=10
Step-by-step explanation:
log10(x+1)+log10(x-1)=
log(base 10)11+2log(base 10)3
log(base 10)[(x+1)(x-1)]=log(base 10)[11*9]
x^2-1=99 (since, (a+b)(a-b)=a^2-b^2)
x^2=100
x=√100
Therefore, x=10
Similar questions