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Marrrta [24]
3 years ago
14

Please help!

Mathematics
2 answers:
Snezhnost [94]3 years ago
4 0

-9i(-9i+4)+3(8+8i)


Use the distributive property to remove the parenthesis:


-9i * -9i = 81i^2

-9i x 4 = -36i

3x8 = 24

3x8i = 24i

Now you have 81i^2 - 36i + 24 + 24i


i^2 = -1


Now you have 81 x -1 - 36i + 24 + 24i


-81 +24 = -57

-36i +24i = -12i


Final answer = -57 - 12i


The answer is D.

Igoryamba3 years ago
3 0

Answer:

D

Step-by-step explanation:

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