Bonjour
Développer
(3x + 5 )² = 9x² + 30x + 25
(2x -1) (2x +1) = 4x² - 1
(1 - 2x)² = 1 - 4x + 4x².
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Bonjour
Développer
(3x + 5 )² = 9x² + 30x + 25
(2x -1) (2x +1) = 4x² - 1
(1 - 2x)² = 1 - 4x + 4x².