To write $-4 - (1 + i) - (5 + 9i)$ in standard form, we simplify the expression by combining like terms:

Step 1: Expand the expression

$-4 - (1 + i) - (5 + 9i) = -4 - 1 - i - 5 - 9i$

Step 2: Group real and imaginary parts

$(-4 - 1 - 5) + (-i - 9i)$

$= -10 - 10i$

Final Answer:

The standard form of the expression is: $\boxed{-10 - 10i}$

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Would you like further explanations or examples?

Here are 5 related questions to try:

1. Simplify $(3 + 2i) - (7 + 5i)$ in standard form.
2. What is the magnitude of $-10 - 10i$?
3. Add $(4 + i)$ to $-10 - 10i$ and simplify.
4. Write the conjugate of $-10 - 10i$.
5. Multiply $(-10 - 10i)$ by $i$.

Tip: Always group real and imaginary parts separately for clarity when simplifying complex numbers.