I believe it is 17.0, I hope this helps some
PEMDAS
5X10 = 50
102-50= 52
Answer = 52
When you match the pattern of (x+y)⁴ to (a+b)ⁿ, you see that a=x, n=4. Then the first term aⁿ can be found by substituting these values for "a" and "n":
... x⁴
You can’t really find the sum unless there is number to plug in for the variables.