3 years ago

Which expression is the equivalent to (4+7i)(3+4i)

1 answer:

4 0

Answer:

-16 + 37i

Step-by-step explanation:

First expand.

You get 12 + 16i + 21i + 28i^2.

Because $i=\sqrt{-1}$ , you get 12 + 37i - 28 or -16 + 37i. $\blacksquare$

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