# Thread: Solve using log?

1. ## Solve using log?

How do I solve for: (x^3)(5^x)=200

I know the answer is 2 but how do I solve for it using logs or Ln?

Thanks for any help you can provide.

2. Originally Posted by Cal
How do I solve for: (x^3)(5^x)=200

I know the answer is 2 but how do I solve for it using logs or Ln?

Thanks for any help you can provide.
you can't solve this equation using elementary algebraic principles of logs.