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Mathematics 10 Online
OpenStudy (anonymous):

multiply complex conjugates (4+3i)(4-3i)

OpenStudy (anonymous):

you would have to know that \[\large (a+b)(a-b)=a^2-b^2\]

OpenStudy (anonymous):

applying that fact to your question what do you get??

OpenStudy (anonymous):

7

OpenStudy (anonymous):

right?

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