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# Logarithm question Watch

1. Solve log base 2a 4a squared
2. (Original post by Niki5)
Solve log base 2a 4a squared
Is that ?

Or ?

If the latter, remember that
3. It is not (4a) squared but it is 4a squared
4. (Original post by joostan)
Is that ?

Or ?

If the latter, remember that
yes it is the second thing you wrote joostan
5. (Original post by Niki5)
yes it is the second thing you wrote joostan
Read the bottom of my first post
6. Thank you for your help. I got it.
7. (Original post by Niki5)
Thank you for your help. I got it.
Good
8. wait a minute
/log-{2a}{4a^2}
is equal to
2log-{2a}4a
9. Do i ignore the 2 infront?
10. (Original post by Niki5)
wait a minute
/log-{2a}{4a^2}
is equal to
2log-{2a}4a
No.

Finish off yourself
11. (Original post by joostan)
No.

Finish off yourself
To me it looks like the answer is 2 but i don't understand how you came up with (2a)2=4a2
12. (Original post by Niki5)
To me it looks like the answer is 2 but i don't understand how you came up with (2a)2=4a2
Correct
Just rules of indices . . .
So
13. (Original post by Niki5)
To me it looks like the answer is 2 but i don't understand how you came up with (2a)2=4a2
It is ok I understand it
14. (Original post by Niki5)
It is ok I understand it
good
15. How do you solve this one?
2loga-3-log2c
16. (Original post by Niki5)
How do you solve this one?
2loga-3-log2c
Is that ?
You can't solve it, it's not an equality.
To express in a single logarithm: Use
17. (Original post by joostan)
Is that ?
You can't solve it, it's not an equality.
To express in a single logarithm: Use
well they wrote lg instead of log
18. Leave the last one
Can you help me with this one then?
2 to the power of 2x minus 2 to the power of x minus 6
19. (Original post by Niki5)
Leave the last one
Can you help me with this one then?
2 to the power of 2x minus 2 to the power of x minus 6
That's another expression. Do you mean

You can factorise it like a quadratic.
That's another expression. Do you mean

You can factorise it like a quadratic.
True say

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