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ameliejacquet
@ameliejacquet
January 2021
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Bonsoir j'ai une expression a developper et reduire :(x-1)au carré+x au carré +(x+1) au carré.merci
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nini999
Verified answer
Bonsoir :
(x-1)²+x²+(x+1)²
(x-1)² il prend la forme de (a-b)²=a²-2ab+b²
(x+1)² il prend la forme de (a+b)²=a²+2ab+b²
Alors :
x²-2x+1+x²+x²+2x+1
x²+x²+x²-2x+2x+1+1
3x²+2
J’espère t'avoir t'aider
2 votes
Thanks 1
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Lista de comentários
Verified answer
Bonsoir :(x-1)²+x²+(x+1)²
(x-1)² il prend la forme de (a-b)²=a²-2ab+b²
(x+1)² il prend la forme de (a+b)²=a²+2ab+b²
Alors :
x²-2x+1+x²+x²+2x+1
x²+x²+x²-2x+2x+1+1
3x²+2
J’espère t'avoir t'aider