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6x 5 4x 1 0
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6x 5 4x 1 0
1 4x 0 6x 0 16 5 5
4x 5 )( 6x 1 3 1 )u003d 0
4x 5 2x 1 )u003d- 6x 0
6x 5 4x 1 0
