Bonjour je bloque totalement :/ si quelqu'un peut m'aider :)


– 1) Factorisez les expressions suivantes : (6 points)
C = (6x – 2) (x + 7) + 9x² - 1 ;
D = x3 – x ; E = 16 – (2x – 3)².

2) Résolvez les équations : C = 0 ; D = 0 ; E = 0
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