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14 December, 04:55

2x squared plus negative 5 - 10 equals zero

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Answers (2)
  1. 14 December, 06:36
    0
    2x² + (-5) - 10 = =

    2x² - 5 - 10 = 0

    2x² - 15 = 0

    + 15 + 15

    2x² = 15

    2 2

    x² = 7.5

    x ≈ 2.74
  2. 14 December, 08:50
    0
    X² will be 7.5 i think the person who answered it below did a very good job congratulation
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