Question

Решить уравнение (х – 1)(х + 2) – х (х + 3) = 3х – 1.

Answer 1

$(x - 1)(x + 2) - x(x + 3) = 3x - 1 < = > x {}^{2} + 2x - x - 2 - x {}^{2} - 3x < = > 3x - 1 < = > \ - 2x - 2 = 3x - 1 < = > - 2x - 3x = - 1 + 2 < = > - 5x = 1 < = > \ x = - frac{1}{5}$