What value of p will make (x\(^2\) - 4x + p) a perfect square?
MATHEMATICS
WAEC 2022
What value of p will make (x\(^2\) - 4x + p) a perfect square?
- A. -2
- B. 16
- C. 4
- D. -8
Correct Answer: C. 4
Explanation
(x\(^2\) - 4x + p)
Use the coefficient of the middle variable(-4x)
= (\(\frac{-4}{2}\))\(^2\)
= (-2)\(^2\)
= 4
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