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March 25, 2017

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use the rational zeros theorem to find all the real zeros of the polynomial. Use the zeros to factor f over the real numbers.

f(x)=2x^3-x^2+2x-1

  • Algebra - ,

    One root is x = 1/2, so one factor is x - 1/2
    Divide f(x) by x - 1/2 to yield a quadratic equation
    2x^2 + x +2 = 0

    that will provide the other two roots.

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