The polynomial has as a factor. Find the value of .
Answer and explanation
Correct answer: D. -3
- Step 1: Since is a factor, . Step 2. , so . Answer: -3. Why not the others: 3: The sign is reversed; check by substituting . -1: That adds the root to the correct value. -6: That is out by 3.
Practise more Polynomials and the remainder theorem.
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