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Productos notables.
(a + b)² = a² + 2ab + b²
(a - b)² = a² - 2ab + b²
(5x + 1)² + (5x - 1)² - 50x ² =
(5x)² + (5x)(1) + 1² + (5x)² - 2(5x)(1) + 1² - 50x²
5²x² + 10x + 1 + 5²x² - 10x + 1 - 50x²
25x² + 10x + 1 + 25x² - 10x + 1 - 50x² = Reduces terminos semejantes
50x² + 2 - 50x² =
2
Respuesta.
2