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9 February, 03:01

The roots of the equation 2x^2+8x-7=-2 are?

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  1. 9 February, 03:21
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    2x^2+8x-7=-2

    2x^2+8x - 5 = 0

    using the formula: - x = [-8 + / - sqrt (8^2 - 4*2*-5) ] / 4

    = - 2 + / - sqrt 104) / 2

    = 0.5495, - 4.549
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