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17 2x 7x 2
17 2x 7x 2 pictures 5
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17 2x 7x 2
17 7x 2x 2 5x 7
show that 2x 2 7x 17 0
(- 2x 2 7x 2 3x 2 17
7x 17 2x 2 8x 15
2x 2 7x 17 0
17 2x 7x 2
