Question

Use synthetic division to determine whether the number k is an upper or lower bound (as specified) for the real zeros of the function f. K = 4; f(x) = 2x3 - 2x2 - 3x - 5; lower bound?

Answer 1

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Here is your answer.

4|    2    -2    -3    -5

             8    24   84

   ________________

      2      6   21    79

4 in not a lower bound of the function f(x) = 2x^3 - 2x^2 - 3x - 5

4 is an upper bound of the function f(x) = 2x^3 - 2x^2 - 3x - 5

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