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10 December, 22:39

Which expression is equivalent to (6 + 2i) (5 + 3i) ?

A 24 + 28i

B 36 + 28i

C 24 - 28i

D 30 - 28i

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Answers (1)
  1. 10 December, 23:05
    0
    A

    Steps:

    i^2 = - 1

    Multiply the terms together;

    30 + 18i + 10i + 6i^2

    30 - 6 + 28i

    24 + 28i
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