X(x-3)-x²=2 tìm x Giúp mình vs

Question

X(x-3)-x²=2 tìm x  Giúp mình vs

maingoctruc · Answer

x(x - 3) - x^2 = 2   &hArr; x^2 - 3x - x^2 = 2   &hArr; -3x = 2   &hArr; x = -2/3   Vậy x = -2/3

daolanhoa · Answer

x(x - 3) - x^2 = 2   => x . x - x . 3 - x^2 = 2   => x^2 - 3x - x^2 = 2   => -3x = 2   => x = -2/3   Vậy x = -2/3