Question

Реши уравнение x^2 + 2x − 3 = 0.

Answer 1

${x}^{2} + 2x - 3 = 0 \ {x}^{2} + 3x - x - 3 = 0 \ x(x + 3) - 1(x + 3) = 0\ (x + 3)(x - 1) = 0 \ x + 3 = 0 \ x - 1 = 0 \ x1 = - 3 \ x2 = 1$

Answer 2

спс ты топ.

Answer 3

незачто