jjroc0218 jjroc0218

01-01-2018
Mathematics

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which expression is equivalent to (3k-2i)squared, where i is the imaginary unit?

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TheAakash TheAakash

01-01-2018

Let's actually do it to find out:
[tex](3k-2i)(3k-2i)[/tex]

Simplify using FOIL (note that i squared is -1):
[tex]9k^2-6ki- 6ki + (4*-1)[/tex]

Simplify further:
[tex]9k^2-12ki-4[/tex]

That's your answer! Hope it helps!

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