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Describe and correct the error in using synthetic division to divide x - 5x + 3 by x-2.

User Chaboud
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Final answer:

The likely error is a mistyped polynomial. Synthetic division of the corrected polynomial x^2 - 5x + 3 by x - 2 follows a step-by-step process resulting in a quotient of x - 3 with a remainder of -3.

Step-by-step explanation:

The student has made an error in typing their polynomial. It is likely they intended to write x^2 - 5x + 3 for division by x - 2 using synthetic division. Nonetheless, if we correct this as x^2 - 5x + 3, the process of synthetic division would start by using the zero of the divisor, which is +2 in this case, as the synthetic number.

  1. Write down the coefficients of the polynomial: 1 (from x^2), -5 (from -5x), and +3 (constant term).
  2. Bring down the leading coefficient (1).
  3. Multiply this leading coefficient by the synthetic number (2), and place the result (2) underneath the second coefficient (-5).
  4. Add the second column giving the new second coefficient (-5 + 2 = -3).
  5. Multiply the new second coefficient (-3) by the synthetic number (2), and place the result (-6) underneath the third coefficient (+3).
  6. Add the third column giving the remainder (-6 + 3 = -3).

The result of the synthetic division of x^2 - 5x + 3 by x - 2 is an equation of the first degree with a remainder, given as x - 3 with a remainder of -3.

User Jim Doyle
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