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27 July, 04:52

Solve using perfect square factoring patterns. y2 + 14y + 49 = 0

A:{0, - 1}

B:{7}

C:{-7}

D:{7, - 7}

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Answers (1)
  1. 27 July, 05:38
    0
    Y² + 14y + 49 = 0

    We know a² + 2ab + b² = (a + b) ²

    (y) ² + 2 x 7 x y + (7) ² = 0

    (y + 7) ² = 0

    y = - 7

    y = - 7

    Correct option C
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