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If x2 + 6x + c = (x + d) 2, then d

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Answers (2)
  1. 24 March, 19:12
    0
    d = 3

    Step-by-step explanation:

    Expand the right side and compare the coefficients of like terms

    x² + 6x + c = x² + 2dx + d²

    For the 2 sides to be equal then coefficients of like terms must be equal

    compare coefficients of x - terms, then

    2d = 6 ⇒ d = 3
  2. 24 March, 19:34
    0
    c=9

    d=3

    Step-by-step explanation:

    i just took the test hows yall day
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