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sousamelodie
@sousamelodie
June 2021
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svp je comprend rien
la consigne c est : Développé chaque expression
a) ( x+2)(y+3)
b) (a+5)(7+b)
c) (4a+2)(1+5b)
d) (6y+1)(9+x)
si vous trouvez sa m aide énormément merci par avance
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maudmarine
Verified answer
a) ( x+2)(y+3)
= xy + 3x + 2y + 6
b) (a+5)(7+b)
= 7a + ab + 35 + 5b
c) (4a+2)(1+5b)
= 4a + 20ab + 2 + 10b
d) (6y+1)(9+x)
= 54y + 6xy + 9 + x
1 votes
Thanks 1
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sousamelodie
February 2021 | 0 Respostas
Bonjour pourriez vous m aidez c est pour demain ce sont des equations a resoudre exercices 1: X+3=18 5+y= -20 a -10=16 - 5+t = - 24 consigne : chacun de ses nombres est-il une equation ? - 9 = 27 - 12x a) 1 b)- 3 c) 3 d) un tiers ( sur un fraction )
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Verified answer
a) ( x+2)(y+3)= xy + 3x + 2y + 6
b) (a+5)(7+b)
= 7a + ab + 35 + 5b
c) (4a+2)(1+5b)
= 4a + 20ab + 2 + 10b
d) (6y+1)(9+x)
= 54y + 6xy + 9 + x