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(x * x² - x * 3x + x * 9 + 3x² - 3 * 3x + 3 * 9) + (x * x² + x * 4x + x * 16 - 4x² - 4 * 4x - 4 * 16) - 2x³ - 8
(x³ - 3x² + 9x + 3x² - 9x + 27) + (x³ + 4x² + 16x - 4x² - 16x - 64) - 2x³ - 8
(x³ + 27) + (x³ - 64) - 2x³ - 8
x³ + 27 + x³ - 64 - 2x³ - 8
x³ + x³ - 2x³ - 64 - 8 + 27
2x³ - 2x³ - 72 + 27
- 45
Solución :
- 45