What must be added to x 2 - 3x to make it a perfect square?
MATHEMATICS
WAEC 2006
What must be added to x2 - 3x to make it a perfect square?
- A. \(\frac{9}{4}\)
- B. \(\frac{9}{2}\)
- C. 6
- D. 9
Correct Answer: A. \(\frac{9}{4}\)
Explanation
x2 - 3x + k(perfect square)
k = (-\(\frac{3}{2}\))2 ; k = \(\frac{9}{4}\)
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