question_answer

For a quadratic equation \[\alpha {{x}^{2}}+\beta x+\gamma =0\], if roots are In the ratio 3 : 4, then

A) \[12{{\beta }^{2}}=49\alpha \gamma \]          

B) \[6{{\beta }^{2}}=7{{\alpha }^{2}}\gamma \]

C) \[15{{\beta }^{2}}=49\alpha \gamma \]                                                

D) \[16{{\beta }^{2}}=7\alpha \gamma \]

E) None of these