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Aplicas Productos Notables.
(a + b)² = a² 6 2ab + b²
(x + 7)² =
x² + 2(x)(7) + 7² =
x² + 14x + 49
Aplicas.
(a - b)² = a² - 2ab + b²
(3x - 2)² =
(3x)² - 2(3x)(2) + 2²
3²x² - 12x + 4 =
9x² - 12x + 4