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[" If "alpha+beta=-2" and "alpha^(3)+beta^(3)=-56" the it the "],[" quatratic equation whese roots ane "a,h" is "],[" 1) "x^(2)+2x-16=0" ?) "x^(2)+2x-15=0],[" 3) "x^(2)+2x-12=0" i) "x^(3)+2x-8=0]

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