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[" (a) "4,(-1)/(2)quad " (b) "4,(1)/(2)quad " (c) "-4,(1)/(2)],[" 27.If "(x+5)" is a factor of "p(x)=x^(3)-20x+5k" then "k=?],[[" (a) "-5," (b) "5," (c) "3," (d) "-3]]

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