Final answer:
The question lacks necessary context and clear information to provide an accurate equation or solution for 'x'. It appears to be a mathematical problem, but no coherent problem is presented with the fragmented details provided.
Step-by-step explanation:
The question appears to contain a mathematical expression involving variables and degrees, possibly related to arithmetic or algebra. However, the provided context and variables ‘m’, ‘n’, and ‘x’ are not consistent, and the question contains incomplete information, rendering it impossible to provide a reliable answer. Given 'm|n' implies 'm' divides 'n', this could be related to divisibility or factors in mathematics, yet this guess cannot be confirmed due to the lack of coherence in the question. Typically, one would solve for 'x' given an equation, but the provided text does not constitute a clear equation or known mathematical problem.