Ответы на вопрос:
(х+1/2)(х+5/2) = x^2 + 33/4 x^2 + (6/2)x + 5/4 = x^2 + 33/4 3x = 28/4 x = 7/3 проверка: 7/3 + 1/2 = (14+3)/6 = 17/6 7/3 + 5/2 = (14+15)/6 = 29/6 17/6 * (29/6) = 17*29/36 = 493/36 (7/3)^2 = 49/9 49/9 + 33/4 = (49*4+33*9)/36 = 493/36
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