bonjour
( x + 2) / ( x - 2) + 1 = 0
( x + 2) / ( x - 2) + 1 ( x - 2) / ( x - 2) = 0
( x + 2 + x - 2) / ( x - 2) = 0
2 x / ( x - 2) = 0
valeur interdite = 2
2 x = 0 pour x = 0
x - 2 = 0 pour x = 2 = VI
x - ∞ 0 2 + ∞
2 x - Ф + +
x - 2 - - Ф +
quotient + Ф - Ф +
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bonjour
( x + 2) / ( x - 2) + 1 = 0
( x + 2) / ( x - 2) + 1 ( x - 2) / ( x - 2) = 0
( x + 2 + x - 2) / ( x - 2) = 0
2 x / ( x - 2) = 0
valeur interdite = 2
2 x = 0 pour x = 0
x - 2 = 0 pour x = 2 = VI
x - ∞ 0 2 + ∞
2 x - Ф + +
x - 2 - - Ф +
quotient + Ф - Ф +