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Simplify. Write your answers in the form of a+bi, where a and b are real numbers.?

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(8-4i)^2

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  1. (8 - 4i)^2 = 8^2 - 2(8)(4i) + (4i)^2

    = 64 - 64i + 16i^2

    = 64 - 64i - 16      (i^2 = -1)

    = 48 - 64i       ==> is the answer.

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