If α,β are the roots of px2+qx+r=0,...
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( quad ) If ( alpha, beta ) are the roots of ( p x^{2}+q x+r=0, ) then find the value of ( alpha^{3}+beta^{3} )
(A) ( frac{3 q p r-q^{3}}{p^{3}} )
(B) ( frac{3 p q r-3 q}{p^{3}} )
(C) ( frac{p q r-3 q}{p^{3}} )
(D) ( frac{3 p q r-q}{p^{3}} )

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If α,β are the roots of px2+qx+r=0, then find the value of α3+β3
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( alpha^{3}+beta^{3} )
( Rightarrow(alpha + beta)left(alpha^{2}+beta^{2}+alpha betaright)^{2} )
( (alpha+beta)(alpha+beta)^{2}-3 alpha beta^{2} )
( (alpha+beta)^{2}-3 alpha beta(alpha+beta) )
( frac{q_{}^{2}-3 frac{gamma}{p}left(frac{-q_{}^{}}{p^{}}right)}{p^{2}} )
( frac{q_{}^{2}}{p^{2}}+frac{3 q_{} gamma}{p^{2}} )

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