Answer:
120
Step-by-step explanation:
15x8=120 so that the answer
Given that,
The given expression is : 
To find,
The value of the above expression when x = 2 and y = 4
Solution,
We have,

Put x = 2 and y = 4 in the above expression.

So, the value of the above expression is 18.
Answer
it is the highest power combined that one expression has, in this case its 5u^8, thus the degree is 8
We need to see the "given system".