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If x1,x2(x1>x2) are abscissae of points P, Q lying on y=2x2−4x−5 such that the tangents drawn at these points pass through the point (0, -7), then 3x1−2x2 equals to |
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Answer» If x1,x2(x1>x2) are abscissae of points P, Q lying on y=2x2−4x−5 such that the tangents drawn at these points pass through the point (0, -7), then 3x1−2x2 equals to |
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