After performing polynomial division of by , what is the quotient?
Answer
x^2-2x+1
The correct answer is x^2-2x+1 — The remainder is 0, confirming the division is exact.
Step-by-step solution
- Use synthetic division with root .
- Set up the coefficients: 1 | -3 | 3 | -1.
- Bring down the leading coefficient 1 to the bottom row.
- Multiply 1 by 1 and add to the next coefficient: -3 + 1 = -2.
- Multiply -2 by 1 and add to the next: 3 + (-2) = 1.
- Multiply 1 by 1 and add to the last: -1 + 1 = 0 (remainder).
- The bottom row gives the coefficients of the quotient: .
- Thus the quotient is .
- The remainder is 0, confirming the division is exact.
Common mistake: Incorrect application of synthetic division steps
Concept tested: Polynomial long division
Published · How this solution was prepared and checked
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