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[ (-9)*a^2 * (3*a^2 + 4)*(1 - a) + 3*a^3 * (3*a^2 - 4) ]/(3*a^2 - 4)^2 + 3= 0
[ (-9)*a^2 * (3*a^2 + 4)*(1 - a) + 3*a^3 * (3*a^2 - 4) ]/(3*a^2 - 4)^2 + 3= 0
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