Bonjour,
25 x² +70 x +49-3(5 x + 7)
25 x² +70 x +49 = (5x+7) ²
IR
=>
(5x+7) (5x+7) -3(5x+7)
= (5x+7) (5x+7 -3)
=(5x=7) ( 5x +4)
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Bonjour,
25 x² +70 x +49-3(5 x + 7)
25 x² +70 x +49 = (5x+7) ²
IR
=>
(5x+7) (5x+7) -3(5x+7)
= (5x+7) (5x+7 -3)
=(5x=7) ( 5x +4)