Post-UTME Mathematics 2013 Objective — Question 85
Question 85 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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What value of K makes the expression p² - 18p + K a perfect square?
- A. -9
- B. 9
- C. -81
- D. 81Correct
Explanation
p²-18p+81=(p-9)², so K=81.
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