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1 2 x 4x2
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1 2 x 4x2
4x2 2 m 1 x m
3x2 2x 1 x 4x2 2
4x2 2 k 1 x k 4
x2 4x2 x 1 u003d( x 2
2 1 2 x 3x4 4x2 3x2 5x2
x3 4x2 x 1 u003d( x 2 3 solve
2 x 1 2 4x2 2x 1
4x2 p 2 x 1 0
x3 4x2 x 1 u003d( x 2 3
1 2 x 4x2
