March 30, 2017

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If the quadratic kx^2−14x+1 is a perfect square polynomial, what is the value of k

  • Maths - ,

    Because of the 1 at the end it has to be half of the middle coefficient of the middle term, and then squared
    that is, k = 49

    49x^2 - 14x + 1
    = (7x-1)(7x-1)

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