Odpowiedź:
4 - (x + 3)(x + 2) = x(1 - x)
4 - (x² + 3x + 2x + 6) =x - x²
4 - x² - 5x - 6 = x - x²
- x² + x² - 5x - x = 6 - 4
- 6x = 2
6x = - 2
x = - 2/6 = - 1/3
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Odpowiedź:
4 - (x + 3)(x + 2) = x(1 - x)
4 - (x² + 3x + 2x + 6) =x - x²
4 - x² - 5x - 6 = x - x²
- x² + x² - 5x - x = 6 - 4
- 6x = 2
6x = - 2
x = - 2/6 = - 1/3