I'm bad at maths so how do you do this question?

(3x)^lg(3) = (4x)^lg(4)

Find the exact value of 'x'

Thanks in advance (Happy)

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- Dec 5th 2011, 05:44 AMzResistancelogarithm question
**I'm bad at maths so how do you do this question?**

**(3x)^lg(3) = (4x)^lg(4)**

**Find the exact value of 'x'**

**Thanks in advance (Happy)** - Dec 5th 2011, 06:47 AMprincepsRe: logarithm question
- Dec 5th 2011, 07:27 AMzResistanceRe: logarithm question
Thanks ALOT:D , greatly appreaciated for your help

- Dec 5th 2011, 10:42 AMSorobanRe: logarithm question
Hello, zResistance!

Even if you're good at maths, this problem is a killer!

Here's a slightly different approach.

Quote:

Take logs: .

n . . . . . . . .

a . . . .

. . . . .

. . . .

x . . . .

x . . . . . . . . . . . .

x . . . . . . . . . . . .

x . . . . . . . . . . . .

x . . . . . . . . . . . .

. . . . . . . . . . . . . . .