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algebra

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)Find a value of s such that x – 4 is a factor of f(x) = x3 - 2x2+ sx + 4.

  • algebra - ,

    division reveals that the remainder is 4s+36

    so, if s = -9, the remainder is zero.

    check:
    x^3 - 2x^2 - 9x + 4 = (x-4)(x^2 + 2x - 1)

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