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10 September, 00:11

Completing the square:

2x^2 + 5x + 1 = 0

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Answers (1)
  1. 10 September, 00:26
    0
    Divide by 2

    X^2+5/2x+1/2

    Subtract 1/2 and then take the middle number divide by two and the. Square it. Add it on the other side

    X^2+5/2x+25/16=-1/2+25/16

    Take x + 5/4 squared

    (X+5/4) ^2=17/16

    Subtract 5/4

    X=-3/16

    Or if you don't need x it would be (x+5/4) ^2+17/16
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