Bonjour Exercice 3 : Factoriser B = 25y+10= A = 4x-20 = 4 (sc-20 C=7a+a? = D=8x - 6x +10x = E =(6x - 1)(3x + 4)+7(6x -- 1) = F=(x+5)(2x+1)+(x + 5)(4x+7)= G =(2x
Mathématiques
mamou7298
Question
Bonjour
Exercice 3 : Factoriser
B = 25y+10=
A = 4x-20 = 4 (sc-20
C=7a+a? =
D=8x - 6x +10x =
E =(6x - 1)(3x + 4)+7(6x -- 1) =
F=(x+5)(2x+1)+(x + 5)(4x+7)=
G =(2x+1)+3x(2x+1)
1 Réponse
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1. Réponse hirondelle52
Bonjour,
B = 25y+10=
5(5y + 2)
A = 4x-20 = 4 (sc-20
??
C=7a+a² =
a(7+a)
D=8x - 6x +10x =
2x( 4 -3 +5)
= 2x( 6)
E =(6x - 1)(3x + 4)+7(6x - 1) =
(6x-1) ( 3x+4 +7)
=(6x-1) ( 3x+11)
F=(x+5)(2x+1)+(x + 5)(4x+7)=
(x+5) ( 2x+1 +4x+7)
= (x+5)( 6x +8)
G =(2x+1)+3x(2x+1)
(2x+1) ( 1+3x)