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21 October, 18:09

Evaluate the following expression: - 5 (3,4) - 3 (7,8).

A. (-36, - 39)

B. (-6,4)

C. (-6, - 39)

D. (-36,4)

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Answers (1)
  1. 21 October, 21:28
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    -5 (3, 4) - 3 (7, - 8) =

    -5 (3, 4) + [-3 (7, - 8) ] =

    = (-15, - 20) + (-21, 24)

    = (-15 - 21, - 20 + 24)

    = (-36, 4)

    Answer: D. (-36, 4)
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