WAEC - Mathematics (2006 - No. 14)

What must be added to x2 - 3x to make it a perfect square?
\(\frac{9}{4}\)
\(\frac{9}{2}\)
6
9

Explanation

x2 - 3x + k(perfect square)

k = (-\(\frac{3}{2}\))2 ; k = \(\frac{9}{4}\)

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