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22 February, 14:52

In steps explain how to work 100x^2+180x+81

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Answers (1)
  1. 22 February, 18:07
    0
    100x² + 180x + 81

    100x² + 90x + 90x + 81

    (10x + 9) (10x + 9)

    or

    100x² + 180x + 81 = 0

    x = - 180 + / - √ (180² - 4 (100) (81))

    2 (100)

    x = - 180 + / - √ (32400 - 32400)

    200

    x = - 180 + / - √ (0)

    200

    x = - 180 + / - 0

    200

    x = - 180

    200

    x = - 9/10
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