Answer :

Final answer:

Synthetic division is used to find the value of a polynomial at a specific point. We used this process to find that p(-5) = 237 when given p(x) = 3x⁴ + 14x³ - 6x² - 3x - 23.

Explanation:

To solve the question using synthetic division, we set up the coefficients of the polynomial p(x) in order of their powers from greatest to least: 3, 14, -6, -3, -23. In synthetic division, the number we are dividing by (in this case, -5) is written to the left of these coefficients.

  1. Write the first term (3) underneath the line. Multiply this value by -5 to give -15.
  2. Add this number to the next coefficient in the row (14), to give -1. Write this value under the line, and again multiply by -5 to give 5.
  3. Repeat this process with the remaining coefficients, resulting in a final row of 3, -1, 9, -48, 237.

So the final result, p(-5), is given by the last number calculated, which is 237. Thus, p(-5) = 237.

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