Given:
There is an expression given as below
[tex]\left(9+4i\right)-(-3-6i)[/tex]
Required:
We need to find the correct option after simplify the given expression
Explanation:
[tex]\begin{gathered} (9+4i)-(-3-6i) \\ =9+4i+3+6i \\ =12+10i \end{gathered}[/tex]
Final answer:
12+10i
