Post-UTME Mathematics 2013 Objective — Question 18
Question 18 of 100 from the Post-UTME Screening (Post-UTME) Mathematics 2013 Objective paper, with the correct answer and a full explanation.
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Simplify (x²-1)/(x³-2x²-x+2)
- A. 1/(x+2)
- B. (x-1)/(x+1)
- C. (x-1)/(x+2)
- D. 1/(x-2)Correct
Explanation
Denominator factors as (x-2)(x-1)(x+1); numerator (x-1)(x+1) cancels, leaving 1/(x-2).
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