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17 September, 15:12

What is the product of (-7 + 4i) • (1 - 8i)

A. - 39 - 52i

B. - 39 + 60i

C. 25 - 52i

D. 25 + 60i

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Answers (1)
  1. 17 September, 15:20
    0
    1. Expand the equation

    -7 + 56i + 4i + 32

    2. Gather like terms

    (-7 + 32) + (56i + 4i)

    3. Simplify

    25 + 60i

    The correct answer would be D. 25 + 60i
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