The correct answer for the problem shown in the figure atttached is the last option (option D), which is shown below:
D. (-3x+6i)(x+2i)
It is impotant to know that if you want to verify that the option D. (-3x+6i)(x+2i) is the correct answer, you can apply the distributive property to (-3x+6i)(x+2i).
Therefore, when you apply the distributive property, you obtain that the result is:
-3x²-12
Which is correct
Therefore, you can be sure that the correct answer is the option D. (-3x+6i)(x+2i).