Question

{x+y=3
{x^2-y^2=3

POGITE SREWITJ

Answer 1

Х + y = 3 ; x^2 - y^2 = 3 ; X + y = ( X - y )*( X + y ) ; X - y = 1 ; y = X - 1 ; X + X - 1 = 3 ; 2x = 4 ; X = 2 ; Y = 2 - 1 ; y = 1 ; Ответ Х = 2 ; y = 1

Answer 2

a eto систему?