log (x2-21)=2
pls help
Answers
Answered by
1
11111112wwweeeeeeeee
Attachments:
Answered by
0
Answer:
log(x²-21) =2
=log(x²-21)=log100
x²-21-100=0
x²-121=0
x²=121
x=+or- √121
x=+or-11
Similar questions