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4a+5b²-1-1½pr-p-0,2pr
4a + 2b² - b² - 1 + 4b² - 1 = 4a + 5b² - 2
2pr - p - 0,2r - pr = pr - p - 0,2r
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4a+5b²-1-1½pr-p-0,2pr
4a + 2b² - b² - 1 + 4b² - 1 = 4a + 5b² - 2
2pr - p - 0,2r - pr = pr - p - 0,2r