To compare the two values \(5 \times 10^8\) and \(8 \times 10^5\), we can first convert them to standard decimal form.
- \(5 \times 10^8 = 500,000,000\)
- \(8 \times 10^5 = 800,000\)
Now we can compare the two values:
- \(500,000,000\) is much larger than \(800,000\).
So, we can fill in the blank as follows:
5×108 > 8×105