Respuesta :

Answer:

15i + 6

Step-by-step explanation:

Multiply. Note that:

i * i = i² = -1

Use the FOIL method.

Distribute 3i to all terms within the first parenthesis:

5 * 3i = 15i

-2i * 3i = -6i² = -6 * -1 = 6

15i + 6 is your answer.

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