Cogniz
What is the value of x in the expression log (2x+3) + log (2x - 3) = log 557
Choose the correct option.
Answers
Answered by
0
Answer:
If the base of both the logs are same , then
Log(2x+3)+Log(2x-3)=Log55
=>Log(4x²-9)=Log55
=>4x²-9=55
=>4x²-64=0
=>(2x+8)(2x-8)=0
Hence,
x=4. x= -4
Similar questions