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Likurg_2 [28]
3 years ago
7

Multiply and simplify the product (6 + 3i)(6 − 3i)

Mathematics
1 answer:
dimaraw [331]3 years ago
5 0

Answer:

\displaystyle 45

Step-by-step explanation:

\displaystyle (6 + 3i)(6 - 3i) = 36 - 9i^2 = 36 - 9[-1] = 36 + 9 = 45

<u>Extended Information</u><u> </u><u>on</u><u> </u><u>the</u><u> </u><u>Complex</u><u> </u><u>Number</u><u> </u><u>System</u>

\displaystyle \sqrt{-1} = i \\ -1 = i^2 \\ -i = i^3 \\ 1 = 4\:[Any\:multiple\:of\:four]

I am joyous to assist you anytime.

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<span />

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