It seems like you are providing a list of expressions, possibly involving scientific notation or calculations. Could you clarify what you're looking for? Are you asking for a simplification, comparison, or some other type of analysis of these numbers?
Here’s a brief overview of the numbers you’ve provided:
- \(4 \times 10^6 = 4,000,000\)
- \(4 \times 10^6 - 6 \times 10^4 = 4,000,000 - 60,000 = 3,940,000\)
- \( -6 \times 10^4 = -60,000\)
- \(4 \times 10^{-6} = 0.000004\)
- \(4 \times 10^{4} = 40,000\)
Let me know what you need!