Respuesta:
(x + 3)² = x²+2-x-3+3² = x² +6x+9
2 (2x - 3)² = (2x)² - 2 - 2x - 3+3² = 4x² - 12x + 9
3 (-2x² + 3)² = (-2x²)² + 2 · (−2x²). 3 + 3² = 4x4 - 12x² +9
haslo cn eso
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Respuesta:
(x + 3)² = x²+2-x-3+3² = x² +6x+9
2 (2x - 3)² = (2x)² - 2 - 2x - 3+3² = 4x² - 12x + 9
3 (-2x² + 3)² = (-2x²)² + 2 · (−2x²). 3 + 3² = 4x4 - 12x² +9
haslo cn eso