Je m'appelle Christopher Sanchez. f ( x ) = 2 x − 3 {\displaystyle f(x)=2x-3} g ( x ) = x + 2 {\displaystyle g(x)=x+2} ( f ( g ) ) , ( f − g ) , ( f + g ) , ( f x ) {\displaystyle (f(g)),(f-g),(f+g),({\frac {f}{x}})}