Предмет: Алгебра, автор: fff215

решите уровнение
(x-6)^2-x(x+8)=2​

Ответы

Автор ответа: Аноним
2

Объяснение:

(x - 6) {}^{2} - x(x + 8) = 2 \\x^{2}-12x+36-x\left(x+8\right)=2 \\x^{2}-12x+36-\left(x^{2}+8x\right)=2 \\x^{2}-12x+36-x^{2}-8x=2 \\-12x+36-8x=2 \\-20x+36=2 \\-20x=2-36 \\-20x=-34 \\x= -34:(-20)\\x = \frac{17}{10} = 1\frac{7}{10} = 1.7

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Several centuries ago a young man could become a doctor by serving an apprenticeship to a practicing physician, meanwhile taking a few night courses in anatomy. Today the future doctor must pass successfully through eight to thirteen or more years of the most demanding, intensive and exhaustive study before setting up his practice.
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