If alpha and beta are zeros of polynomial 2x2+6x-3. Find alpha square +beta square
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find alpha and beta i.e its roots using shreedharacharya formula.
then use identity alpha^2 + beta ^2 = (alpha+beta)^2 - 2alpha×beta
then use identity alpha^2 + beta ^2 = (alpha+beta)^2 - 2alpha×beta
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