Respuesta:
( x + 1 )² = x² + 2x + 1
( x - 1 )² = x² - 2x + 1
( 2x - 3)² = 4x² - 12x + 9
( 5x + y )² = 25x² + 10xy + y²
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Respuesta:
( x + 1 )² = x² + 2x + 1
( x - 1 )² = x² - 2x + 1
( 2x - 3)² = 4x² - 12x + 9
( 5x + y )² = 25x² + 10xy + y²