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11 September, 13:12

Which equation has the same solution as 2x^2+x-3=0

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  1. 11 September, 14:19
    0
    Ax² + bx + c = 0

    2x² + x - 3 = 0

    2x² + x + (-3) = 0

    x = - b + / - √b² - 4ac

    2a

    x = 1 + / - √1² - 4 (2) (-3)

    2 (2)

    x = 1 + / - √1 + 24

    4

    x = 1 + / - √25

    4

    x = 1 + / - 5

    4

    x = 1 + 5 x = 1 - 5

    4 4

    x = 6 x = - 4

    4 4

    x = 3 x = - 1

    2

    x = 1 1/2

    x = 1 1/2 x = - 1
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