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Belinda123
@Belinda123
May 2019
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Bonsoir,
aidez moi svp c'est pour demain
Merci d'avance
bonne soirée.
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MatiereSombre
A(x)= (2x+3)(x-7) + (2x+3)(-4x +5)
A(x)=(2x+3)(x-7-4x+5)=(2x+3)(-3x-2)
B(x)= (x+3)² -(x+3)(-2x+4) =(x+3)(x+3-2x+4)= (x+3)(x+7)
C(x)= (x-1)(2x+4) -(x-1)(x+5) +2(x-1)
C(x)=(x-1)(2x+4-x-5+2)=(x-1)(x+1)
D(x)= 4x²+4x+1=(2x+1)²
E(x)=9x²-25= (3x+5)(3x-5)
F(x)= x²-2x+1 +(x-1)(2x+3) = (x-1)² +(x-1)(2x+3) = (x-1) (3x+2)
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A(x)=(2x+3)(x-7-4x+5)=(2x+3)(-3x-2)
B(x)= (x+3)² -(x+3)(-2x+4) =(x+3)(x+3-2x+4)= (x+3)(x+7)
C(x)= (x-1)(2x+4) -(x-1)(x+5) +2(x-1)
C(x)=(x-1)(2x+4-x-5+2)=(x-1)(x+1)
D(x)= 4x²+4x+1=(2x+1)²
E(x)=9x²-25= (3x+5)(3x-5)
F(x)= x²-2x+1 +(x-1)(2x+3) = (x-1)² +(x-1)(2x+3) = (x-1) (3x+2)