Welcome to Bytelearn!

Let’s check out your problem:

Simplify. Assume all variables are positive.$\newline$$u^{\frac{6}{7}} \times u^{\frac{12}{7}}$$\newline$Write your answer in the form $A$ or $\frac{A}{B}$, where $A$ and $B$ are constants or variable expressions that have no variables in common. All exponents in your answer should be positive.$\newline$______