Question
Quantitative Aptitude Question on Number Systems
What values of k will make 9x2+3kx+4 a perfect square?
A
± 1
B
±2
C
± 3
D
± 4
E
± 5
Answer
± 4
Explanation
Solution
The correct option is (D): ± 4.
What values of k will make 9x2+3kx+4 a perfect square?
± 1
±2
± 3
± 4
± 5
± 4
The correct option is (D): ± 4.