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2 January, 01:17

Which expressions are equivalent to 4 (3j + (-4)) - 9?

A. - 12j-13

B. - 4 (-3j+4) - 9

C. None of the above

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Answers (1)
  1. 2 January, 01:43
    0
    Well, I think is B

    why?

    4 (3j + (-4)) - 9 = 12j+16-9=12j-7

    A. - 12j-13 = 12j-7 (F)

    B. - 4 (-3j+4) - 9 = 12j+16-9=12j-7 (True)
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