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Azertyuio
@Azertyuio
April 2019
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A = (5x-1)(3x+2)+25x²-1
1) Développer et réduire A :
2) Factoriser
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briervalerielevine
1) A=
(5x-1)(3x+2)+25x²-1
= 5x *3x+5x*2-1*3x+1*2+25
x²-1
=15x²+10x-3x+2+25x²-1
=40x²+7x+1
2) A= (5x-1)(3x+2)+25x²-1
=(5x-1)(3x+2)+(5x-1)(5x+1)
Moi je ne vois que ça. Donc tu vérifieras quand même.
Ravi de t'avoir aidé quand même
0 votes
Thanks 1
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= 5x *3x+5x*2-1*3x+1*2+25x²-1
=15x²+10x-3x+2+25x²-1
=40x²+7x+1
2) A= (5x-1)(3x+2)+25x²-1
=(5x-1)(3x+2)+(5x-1)(5x+1)
Moi je ne vois que ça. Donc tu vérifieras quand même.
Ravi de t'avoir aidé quand même