The expression \frac{(x^{3}-1)(x^{2}-9x+14)}{(x^{2}+x+1)(x^{2}-8x+7)} simplifies to
- A. (x-1)
- B. (x-2) ✓
- C. (x-7)
- D. (x-2)
Correct Answer: B. (x-2)
Explanation
Factorizing the terms: x^3-1 = (x-1)(x^2+x+1), x^2-9x+14 = (x-2)(x-7), and x^2-8x+7 = (x-1)(x-7). Substituting these into the expression, all terms cancel out except (x-2). Note: Options (b) and (d) are identical in the original paper.
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