(x² - 7x + 12)(x-6) = (x² - 6x + 5)(x-7)
x³ - 6x² - 7x² + 42x + 12x - 72 = x³ -7x² - 6x² + 42x + 5x - 35
12x - 72 = 5x - 35
7x = 37
x = 37/3
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Answers & Comments
(x² - 7x + 12)(x-6) = (x² - 6x + 5)(x-7)
x³ - 6x² - 7x² + 42x + 12x - 72 = x³ -7x² - 6x² + 42x + 5x - 35
12x - 72 = 5x - 35
7x = 37
Ответ
x = 37/3