Write the expanded form od 8,374 using the exponential notation.

Expanded for of 8,374 is:

8000 + 300 + 70 + 4

And writing it with the exponential notation would look like this (for example):

8 * 10^3 + 3 * 10^2 + 0.7 * 10^2 + 0,04 * 10^2

Hopefully that's what you meant :)