3 years ago

What is the value of (–3 3i) (–2 3i)?

Mathematics

1 answer:

Ahat [919]3 years ago

3 0

Answer:

$-3-15i$

Step-by-step explanation:

$(-3+3i)(-2+3i)$

Multiply the parenthesis. multiply each term in first parenthesis with each term in second parenthesis.

$(-3+3i)(-2+3i)$

$-3(-2+3i)+3i(-2+3i)$

$6-9i-6i+9i^2$

The value of i^2 is -1

$6-9i-6i+9(-1)$

$6-15i-9$

$-3-15i$

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