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(3x-2y)^2
(3x)^2+2(3x)(-2y)+(-2y)^2
9x^2-12xy+4y^2
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Productos Notables.
(a - b)² = a² - 2ab + b²
(3x - 2y)² =
(3x)² - 2(3x)(2y) + (2y)² =
3²x² - 12xy + 2²y² =
9x² - 12xy + 4y²
Respuesta.
9x² - 12xy + 4y²