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4 October, 02:59

X squared by 2 + 4x = - 11

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Answers (1)
  1. 4 October, 04:05
    0
    x=-2+sqrt (7) * i, - 2-sqrt (7) * i

    Step-by-step explanation:

    x^2+4x=-11

    x^2+4x - (-11) = 0

    x^2+4x+11=0

    Apply the quadratic formula with a=1, b=4 and c=11.
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