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13 March, 19:22

What is the value of

5 (7x + 5) x = 10

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Answers (1)
  1. 13 March, 19:53
    0
    x = 2/7 or - 1

    Step-by-step explanation:

    5 (7x + 5) x = 10

    35x² + 25x - 10 = 0

    35x² + 35x - 10x - 10 = 0

    35x (x + 1) - 10 (x + 1) = 0

    (35x - 10) (x + 1) = 0

    x = 2/7 or - 1
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