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To simplify the given expression \((3 - 5i) - (-1 + 8i)\), follow these steps:

1. Distribute the negative sign:
   \[
   (3 - 5i) - (-1 + 8i) = 3 - 5i + 1 - 8i
   \]

2. Combine the real parts and the imaginary parts:
   \[
   (3 + 1) + (-5i - 8i) = 4 - 13i
   \]

Thus, the simplified form is:
\[
4 - 13i
\]

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Here are 5 related questions for further practice:
1. Simplify: \((7 + 2i) + (3 - 4i)\)
2. Simplify: \((6 - 3i) - (2 + 5i)\)
3. Find the product of \((2 + 3i) \times (1 - 4i)\)
4. Simplify: \((8 - i) + (5 + 2i)\)
5. Divide \((9 + 4i)\) by \((3 - i)\)

**Tip:** When simplifying complex numbers, always treat the real and imaginary parts separately.

Learn how to simplify the complex expression (3 - 5i) - (-1 + 8i) with a step-by-step solution. This problem involves the subtraction of complex numbers, where real and imaginary parts are handled separately. Suitable for students in Grades 9-12.

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