You are Here: Home >< Maths

1. i honestly thought I had this sorted, but it seems not.

the question =
log(base 18) x + log(base x) 3 = 2

my method:

log(base 18) x becomes logx / log18
log(base x) 3 becomes log3/logx

as its addition, I multiplied the fractioned versions and took out log

log [ ( x/18 ) / (3/x) ] = 2

But the x's cancel, and I need them to solve.
Hence, does it mean there is no solution? :/
2. The question is unclear to me, sorry...
The question is unclear to me, sorry...
sorry.
find the value (s) of x for which:

its not log (base 1) 8x...i cant get latex to show it as base 18

4. (Original post by Pheylan)

Who's that in your sig? Dayumm!

5. So

I think that's right
6. (Original post by Pheylan)

EDITING
7. (Original post by Pheylan)

The LHS becomes

i'm not sure about the RHS but I do think I can take out a factor of
help appreciated!
8. (Original post by dream123)
The LHS becomes

i'm not sure about the RHS but I do think I can take out a factor of
help appreciated!
no

what sort of equation is this?
9. (Original post by Pheylan)
no

what sort of equation is this?
Quadratic, but it won't solve :/

TSR Support Team

We have a brilliant team of more than 60 Support Team members looking after discussions on The Student Room, helping to make it a fun, safe and useful place to hang out.

This forum is supported by:
Updated: December 9, 2010
Today on TSR

### Degrees to get rich!

... and the ones that won't

### Women equal with Men?

Discussions on TSR

• Latest
• ## See more of what you like on The Student Room

You can personalise what you see on TSR. Tell us a little about yourself to get started.

• Poll
Useful resources

### Maths Forum posting guidelines

Not sure where to post? Read the updated guidelines here

### How to use LaTex

Writing equations the easy way

### Study habits of A* students

Top tips from students who have already aced their exams

## Groups associated with this forum:

View associated groups
Discussions on TSR

• Latest
• ## See more of what you like on The Student Room

You can personalise what you see on TSR. Tell us a little about yourself to get started.

• The Student Room, Get Revising and Marked by Teachers are trading names of The Student Room Group Ltd.

Register Number: 04666380 (England and Wales), VAT No. 806 8067 22 Registered Office: International House, Queens Road, Brighton, BN1 3XE

Reputation gems: You get these gems as you gain rep from other members for making good contributions and giving helpful advice.