[" If "x^(2)-(a-3)x+a=0" has atleast one...

[" If "x^(2)-(a-3)x+a=0" has atleast one positive root then 'a' belong to "],[[" (A) "(-oo,0)uu[7,9]," (B) "(-oo,0)uu[7,oo)],[" (C) "(-oo,0)uu[9,oo)," (D) "(-oo,oo)]]

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