Subtract 8.4×10³ -5×10². Describe the process of rewriting the numbers in this problem with the same power of 10.

8.4×10³ -5×10² =

To rewrite the numbers with the same power of 10, we first need to convert 8.4×10³ to a number with the same power of 10 as 5×10².

8.4×10³ can be rewritten as 8400×10². Now we can subtract 5×10² from 8400×10²:

8400×10² - 5×10² = 8395×10²

Therefore, 8.4×10³ - 5×10² = 8395×10².