Let a>b>0 and the quadratic equation ax2+bx−9=0 has roots as α,β ( – InterviewSolution

1.	Let a>b>0 and the quadratic equation ax2+bx−9=0 has roots as α,β (α<β). If a3+b3+27ab=729, then the value of 4β−aα is
Answer» Let $a > b > 0$ and the quadratic equation $a x^{2} + b x - 9 = 0$ has roots as $α, β (α < β) .$ If $a^{3} + b^{3} + 27 a b = 729,$ then the value of $4 β - a α$ is

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