Répondre :
comment résoudre l'équation x²+256=(119-x)²+1089
x²+256=x²-238x+119²+1089
238x=14994
x=63
x²+256=x²-238x+119²+1089
238x=14994
x=63
x²+256 = (119-x)²+1089
x²+256 = 14161-238x+x²+1089
256 = 14161-238x+1089
256 = 15250-238x
238x = 14994
x = 14994/238
x = 63
x²+256 = 14161-238x+x²+1089
256 = 14161-238x+1089
256 = 15250-238x
238x = 14994
x = 14994/238
x = 63