5,383,000 because you started with 5,382,619 and wanted the 1000 spot that is the number 2 but the number to the right is a 6 which in the order of rounding 6 is greater than 5 so the rule is. Greater than 5 round up.
Permutation:
5! = 5 * 4 * 3 * 2 * 1 = 120
The answer to that equation is X= -1
I don’t know sorry I’m on this app because I need help myself
The term that describes this polynomial is Linear trinomial.