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Thivyan121
@Thivyan121
May 2019
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Bonjour pouvez vous maider a reduire ces exercises SVP
A= (2y+5)au caree + (2y+5)(-3y+1)
B= (3a +7)(2a-9)-(3a+7)au carre
Merci d'avance
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inequation
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Bonjour,
A= (2y+5)² + (2y+5)(-3y+1)
A=
(2y+5)(2y+5) + (2y+5)(-3y+1)
On développe l'expression:
A= 4y²+10y+10y+25 - 6y²-15y+2y+5
On réduit l'expression:
A= -2y²+7y+30
B= (3a +7)(2a-9)-(3a+7)²
A toi de développer puis tu me donneras le résultat.
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Thanks 1
Commentaires (1)
Verified answer
Bonjour
A = ( 2 y + 5)² + ( 2 y + 5) ( - 3 y + 1)
= ( 2 y + 5) ( 2 y + 5 - 3 y + 1)
= ( 2 y + 5) ( - y + 6)
essaie de faire seul le second
1 votes
Thanks 1
inequation
A réduire l'expression.
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Verified answer
Bonjour,A= (2y+5)² + (2y+5)(-3y+1)
A= (2y+5)(2y+5) + (2y+5)(-3y+1)
On développe l'expression:
A= 4y²+10y+10y+25 - 6y²-15y+2y+5
On réduit l'expression:
A= -2y²+7y+30
B= (3a +7)(2a-9)-(3a+7)²
A toi de développer puis tu me donneras le résultat.
Verified answer
BonjourA = ( 2 y + 5)² + ( 2 y + 5) ( - 3 y + 1)
= ( 2 y + 5) ( 2 y + 5 - 3 y + 1)
= ( 2 y + 5) ( - y + 6)
essaie de faire seul le second