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The sum of all the values of ' m ' for ...

The sum of all the values of `' m '` for which the roots `x_1, x_2` of quadratic equation `x^2-2m x+m=0` satisfy `x1 3+x2 3=x1 2+x2 2` is 1. `3/4` 2. `1` 3. `4/3` 4. `9/4` 5. `5/4`

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