(7x+1)(5x-3)-(5x-3)*
* = au carré
1) Developer + Réduire
2) Factoriser le résultat obtenu
* = au carré
1) Developer + Réduire
2) Factoriser le résultat obtenu
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Bonjour(7x+1)(5x-3)-(5x-3)²
(35x² -21x +5x -3) - (25x² - 30x +9)
= 35x² - 16x -3 - 25x² +30x -9
= 10x² +14x -12
Factorisation de l'expression
(5x-3)(7x+1) - (5x-3)
(5x-3)(7x +1 - 5x +3)
(5x-3)(2x +4)