If the equation k(21x2 + 24) + rx + (14x2 − 9) = 0
k(7x2 + 8) + px + (2x2 − 3) = 0 have both roots common, then the value of \(p\over r\) is:
1
\(1\over 3\)
2
\(2\over 5\)
3
\(4\over 3\)
4
\(7\over 5\)
If the equation k(21x2 + 24) + rx + (14x2 − 9) = 0
k(7x2 + 8) + px + (2x2 − 3) = 0 have both roots common, then the value of \(p\over r\) is: