The rectangle below has an area of $144x^4$ square meters and a width of $12x$ meters.
**What is the length of the rectangle?**
![](web+graphie://ka-perseus-graphie.s3.amazonaws.com/0e03731cc7e9b3455fd6d0598424091c4e6eab32)
$\text{Length} = $ [[☃ expression 1]] meters