Développer puis réduire A= (x-1) (x-2)+(x-5) B= 2y+ (y-3) (z-1) C= 2z -(z+3) (z-1) D= 6t²-(2t-3) (3t-1) E=-2v²-(1-2v) (v+1)
Mathématiques
agnes18800
Question
Développer puis réduire
A= (x-1) (x-2)+(x-5)
B= 2y+ (y-3) (z-1)
C= 2z -(z+3) (z-1)
D= 6t²-(2t-3) (3t-1)
E=-2v²-(1-2v) (v+1)
A= (x-1) (x-2)+(x-5)
B= 2y+ (y-3) (z-1)
C= 2z -(z+3) (z-1)
D= 6t²-(2t-3) (3t-1)
E=-2v²-(1-2v) (v+1)
1 Réponse
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1. Réponse Anonyme
A= (x-1) (x-2)+(x-5)
=x²-3x+2+x-5
=x²-2x-3
B= 2y+ (y-3) (z-1)
=2y+yz-3z-y+3
=y-3z+yz+3
C= 2z -(z+3) (z-1)
=2z-(z²+2z-3)
=-z²+3
D= 6t²-(2t-3) (3t-1)
=6t²-(6t²-9t-2t+3)
=11t-3
E=-2v²-(1-2v) (v+1)
=-2v²-(-2v²-2v+v+1)
=v-1