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13 October, 12:32

Evaluate

2t²-3u + 2; t = - 5, u=7

2t² - 3u + 2=

+4
Answers (1)
  1. 13 October, 14:49
    0
    Step-by-step explanation:

    2 (-5) ²-3 (7) + 2

    -50-21+2

    -71+2

    69

    it's substitution
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