bonjour
B = - 8 x ( 3 - 7 x ) - ( 5 - 4 x ) ( 3 - 7 x )
B = ( 3 - 7 x ) ( - 8 x - 5 + 4 x )
B = ( 3 - 7 x ) ( - 4 x - 5 )
Rappel ✓
B = -8x ( 3 - 7x ) - ( 5 - 4x ) (3-7x )
= (3-7x)( -8x - 5 + 4x )
= ( 3-7x ) ( -4x - 5 )
Faire attention aux signes
bonne journée
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bonjour
B = - 8 x ( 3 - 7 x ) - ( 5 - 4 x ) ( 3 - 7 x )
B = ( 3 - 7 x ) ( - 8 x - 5 + 4 x )
B = ( 3 - 7 x ) ( - 4 x - 5 )
bonjour
Rappel ✓
B = -8x ( 3 - 7x ) - ( 5 - 4x ) (3-7x )
= (3-7x)( -8x - 5 + 4x )
= ( 3-7x ) ( -4x - 5 )
Faire attention aux signes
bonne journée