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Sagot :

(x-5=0 ou x+2=0) donc x=5 ou x= -2
S={5,-2}
SKABETIX

Bonjour,

(x - 5)(x + 2) = 0

x - 5 = 0 ou x + 2 = 0

x - 5 + 5 = 0 + 5 ou x + 2 - 2 = 0 - 2

x = 5 ou x = -2

S = {-2 ; 5 }

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