What must be added to x2 – 3x to make it a perfect square?
-
\(\frac{9}{4}\)
- \(\frac{9}{2}\)
- 6
- 9
The correct answer is: A
Explanation
x2 - 3x + k(perfect square)k = (-\(\frac{3}{2}\))2 ; k = \(\frac{9}{4}\)