bonsoir
programme A
nombre=x
(x+1)²-x²=
x²+2x+1-x²=
2x+1
programme b
x×2+1=
donc programme a=programme B
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bonsoir
programme A
nombre=x
(x+1)²-x²=
x²+2x+1-x²=
2x+1
programme b
x×2+1=
2x+1
donc programme a=programme B