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3 July, 17:36

Multiply. Write the answer in standard form.

(8+3i) 2=

+3
Answers (1)
  1. 3 July, 20:21
    0
    55 + 48i

    Step-by-step explanation:

    Complex numbers can be treated as though they were binomials with a variable "i". At the end, any instance of i² can be replaced by - 1.

    (8 + 3i) ² = 8² + 2 (8) (3i) + (3i) ² = 64 + 48i - 9

    = 55 + 48i
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