x²(x + 2) - x(x + 1)² = 5x + 9
x³ + 2x² - x(x² + 2x + 1) = 5x + 9
x³ + 2x² - x³ - 2x² - x = 5x + 9
- x - 5x = 9
- 6x = 9
x = - 1,5
Ответ:
x = -1,5
Объяснение:
x² (x + 2) - x (x + 1)² = 5x + 9
x³ + 2x - x (x + 1)² = 5x + 9
-6x = 9
Ответ: x = -1,5
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Verified answer
x²(x + 2) - x(x + 1)² = 5x + 9
x³ + 2x² - x(x² + 2x + 1) = 5x + 9
x³ + 2x² - x³ - 2x² - x = 5x + 9
- x - 5x = 9
- 6x = 9
x = - 1,5
Ответ:
x = -1,5
Объяснение:
x² (x + 2) - x (x + 1)² = 5x + 9
x³ + 2x - x (x + 1)² = 5x + 9
-6x = 9
Ответ: x = -1,5