## Question

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Anyone can contribute an answer, even non-tutors.

##### James

Date Posted: 1 year ago
Views: 45

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1st
Hope this helps.
I'm not sure if you wrote log2(2x-5) or log2(2x) - 5 though...
But I assume it's log2(2x-5)
Date Posted: 1 year ago
James
1 year ago
Thank you for solve this problem and explain it to me
James
1 year ago
U really help me a lot.i hope you can help me when I got any questions
Clement Cheng
1 year ago
No problem. Glad I was able to help.
James
1 year ago
I would like to ask something.why i need to change the base to base 2
Clement Cheng
1 year ago
This is to make the right hand side into a number, which is easier to work with.
Clement Cheng
1 year ago
You can also write log8(2) = log8(8^(1/3))
= (1/3)log8(8) = 1/3
James
1 year ago
Am I need​ to follow the base of the log inside the bracket in the left side
Clement Cheng
1 year ago
What do you mean?
James
1 year ago
I mean do I need to follow the base 2 in the log 27(log base 2 ^2x-5)in the left side when I change the base in the right side
James
1 year ago
Can you show me that step more detailly
Clement Cheng
1 year ago
No, you don't have to follow. But for this question, it just happens that the base for the right hand side also changes to 2.
James
1 year ago
Oh
James
1 year ago
Clement Cheng I have another similar question.can I send it to you
Clement Cheng
1 year ago
Sure
James
1 year ago
Log16(log3^2x-1)=log4^2
Clement Cheng
1 year ago
The 2nd and 3rd log terms don't have bases?
Clement Cheng
1 year ago
Can I clarify if it's log(base 3)(2x - 1) or log(base3)(2x) -1 ?
James
1 year ago
Got.the second log base is 3 and third log is 4.sorry .I forget to write base there.
James
1 year ago
The first statement
James
1 year ago
Log(base 3)(2x-1)=log (base4)(2)
Clement Cheng
1 year ago
Ok thanks
James
1 year ago
Welcome
clear {{ downvoteCount * -1 }} Downvotes
2nd question. Hope this helps.
Date Posted: 1 year ago
James
1 year ago
Why need to change the base to base 2 in the left side
Clement Cheng
1 year ago
I didn't change the base on the left side. The right side change to base 2, so I can remove the log in the end.
You can also do for the right hand side:
log(base4)2 = log(base4)4^(1/2)
= (1/2)log(base4)4 = 1/2
James
1 year ago
Can I change the log base to base 2 by seeing the power on the base in the right side to remove the log.for example , I use this question.can I change the base to 2 by seeing the power 2 on the top of the base 4 in the right side
Clement Cheng
1 year ago
Why does the base have a power?
Clement Cheng
1 year ago
The base is changed to 2 so that it becomes (log(base2)2) / (log(base2)4) which is 1/2
James
1 year ago
Is the picture that I sent is correct
James
1 year ago
Clement Cheng
1 year ago
correct
James
1 year ago
Thank you Clement Cheng for explaining it patiently to me
James
1 year ago
I will send you message you if I got any other questions.can i
Clement Cheng
1 year ago
The numbers after the base is not it's power. They should be just normal numbers.
i.e. log(base4)2 and not log(base4)^2
Clement Cheng
1 year ago
James
1 year ago
Oh.i understand now.thank you
James
1 year ago
Clement, are you free now? I got another question
James
1 year ago
U also can send me the answer tomorrow
Clement Cheng
1 year ago
You can send me now.
James
1 year ago
Clement Cheng
1 year ago
Em can I ask if it's 9^(log(base3)x) or
9 * (log(base3)x) ?
James
1 year ago
I think it is the second statement
James
1 year ago
9*(log(base3)x)=4
James
1 year ago
I would like to ask how to do the second statement
James
1 year ago
Can you show me how to do the second statement
James
1 year ago
U can also send me tomorrow
James
1 year ago
Goodnight
Clement Cheng
1 year ago
Ok. Goodnight.
James
1 year ago
Ok
James
1 year ago
Clement can you help me to solve my question