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: Option A
Explanation
x2 – 3x + k(perfect square)
k = (-(frac{3}{2}))2 ; k = (frac{9}{4})
x2 – 3x + k(perfect square)
k = (-(frac{3}{2}))2 ; k = (frac{9}{4})