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7 August, 09:36

What is the standard form of (7 - 5i) (2 + 3i) ?

A. 29 + 11i

B. - 11 + 29i

C. 11 - 29i

D. - 29 + 11i

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Answers (1)
  1. 7 August, 09:55
    0
    A

    Step-by-step explanation:

    Note that i² = - 1

    Given

    (7 - 5i) (2 + 3i) ← expand factors using FOIL

    = 14 + 21i - 10i - 15i² ← collect like terms

    = 14 + 11i + 15

    = 29 + 11i → A
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