x(x² + 2x + 1) = 6(x + 1);
x(x + 1)² = 6(x + 1);
x(x + 1)² - 6(x + 1) = 0;
(x + 1)(x(x + 1) - 6) = 0;
(x + 1)(x² + x - 6) = 0;
x + 1 = 0; x² + x - 6 = 0;
x₁ = -1; x₂ = -3; x₃ = 2
Ответ: -1; -3; 2.
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Answers & Comments
x(x² + 2x + 1) = 6(x + 1);
x(x + 1)² = 6(x + 1);
x(x + 1)² - 6(x + 1) = 0;
(x + 1)(x(x + 1) - 6) = 0;
(x + 1)(x² + x - 6) = 0;
x + 1 = 0; x² + x - 6 = 0;
x₁ = -1; x₂ = -3; x₃ = 2
Ответ: -1; -3; 2.