4/x-1-4/x+1=1 найдите корни уравнения
4 * ( X + 1 ) - 4 * ( X - 1 ) = X^2 - 1 4X + 4 - 4X + 4 = X^2 - 1 8 = X^2 - 1 X^2 - 9 = 0 ============= (X - 3)*( X + 3) = 0 X - 3 = 0 ---> X = 3 X + 3 = 0 ---> X = ( - 3 ) =============== Ответ 3 и ( - 3 )