Question

find the value of k if (x+1) is a factor of x cube+3x square +6x+k​

Answer 1

Answer: x^3 + 3x^2 + 6x + k

p(-1)= (-1)^3+3(-1)^2+6(-1)+k

     = -1+3-6+k

     = 2-6+k

 0 = -4 + k

  0 + 4 = k

   ∴k=4

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Answer 2

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