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P abcd = (x+4)*(x+6) = x2 + 4x + 6x + 24 = x2 + 10x + 24
P efgh = (x+3)*(x) = x2 + 3x
Pabcd - Pefgh = x2 + 10x + 24 - (x2 + 3x) = x2 + 10x +24 - x2 - 3x = 7x + 24
P abcd jest większe od pola P efgh o 7x + 24