Vins bonjourf ( - 4) = 5 f ( 3 ) =- 2 f ( 4 ) = 4f ( - 3 ) = - 2 f ( 3 ) = - 2 g ( - 2 ) = - 3 g ( 3 ) = 5 g ( 1 ) = 2 g ( - 2 ) = - 4 f (x) = g (x)  pour x = - 2 franchement on se demande ce que tu ne comprends pas