592 - p2 - 7r from 6p2 - q2 + 2r - 9
please tell me the answer
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6p²-q²+2r-9-(p²-7r+592)
6p²-p²+2r-9-p²+7r-592
6p²-p²-q²+2r+7r-9-592
5p²-p²+9r-601
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