Aide svp!! Factoriser (sachan ke. ^ =exposan 2) A=(x-1)^+x^-1 B=3x^-3+x-1 C=(2x-2)^+(x^-1)^ D=x^×x^-1
Mathématiques
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Question
Aide svp!! Factoriser (sachan ke. " ^ "=exposan 2)
A=(x-1)^+x^-1
B=3x^-3+x-1
C=(2x-2)^+(x^-1)^
D=x^×x^-1
A=(x-1)^+x^-1
B=3x^-3+x-1
C=(2x-2)^+(x^-1)^
D=x^×x^-1
1 Réponse
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1. Réponse droopette
A=(x-1)²+x²-1
=(x-1)(x-1)+(x-1)(x+1)
=(x-1)(x-1+x+1)
=2x(x-1)
B=3x-3+x-1
=3(x-1)+(x-1)
=(x-1)(3+1)
=4(x-1)