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If equation x^(2)+ax+b=0, (a, b, in Q) and 2x^(3)+5x^(2)+2x-1=0 may have a common root, then sum of all possible values of (a-b) is : |
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Answer» `rArr"either x "=-1 ` is ROOT of EQUATION or `x^(2)+ax+b=0 & 2x^(2)+3x-1=0` have both roots in common. |
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