To subtract the two complex numbers, \((3 + 4𝑖)\) and \((7 + 8𝑖)\), you need to subtract the real parts and the imaginary parts separately.

1. **Subtract the real parts:**  
   \(3 - 7 = -4\)

2. **Subtract the imaginary parts:**  
   \(4𝑖 - 8𝑖 = -4𝑖\)

So, the result of the subtraction is:
\[
(3 + 4𝑖) - (7 + 8𝑖) = -4 - 4𝑖
\]

Would you like more details on complex number operations or have any other questions?

Here are 5 related questions for further practice:
1. What is the result of \((5 + 3𝑖) + (2 - 𝑖)\)?
2. How do you multiply \((2 + 𝑖) \times (3 - 𝑖)\)?
3. What is the magnitude of the complex number \(4 + 3𝑖\)?
4. How do you divide \((6 + 8𝑖)\) by \(2\)?
5. What is the conjugate of the complex number \(5 + 7𝑖\)?

**Tip:** Always treat the real and imaginary parts separately when adding or subtracting complex numbers.

Learn how to subtract two complex numbers, (3 + 4𝑖) and (7 + 8𝑖), by breaking down the real and imaginary parts. This example covers core concepts in complex number operations, making it suitable for students in Grades 10-12.

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