# Math Help - Log equation

1. ## Log equation

Hi

I'm stuck on this question.

Solve the equation logx8 + logx4 = 5.

2. First, simplify the LHS using $\displaystyle \log{a} + \log{b} = \log{(ab)}$...

3. Originally Posted by HighlyFlammable
Hi

I'm stuck on this question.

Solve the equation logx8 + logx4 = 5.

The obvious thing to do in this case is apply a basic log rule to get $\log_x(32) = 5$, from which it follows that $x^5 = 32$. It ought to be simple to get x from here.