Question

resolver las ecuaciones completas​

Answer 1

x² + x - 6 = 0

x        + 3

x         - 2

3x - 2x = x

(x + 3)(x - 2) = 0

x + 3 = 0        x - 2 = 0

x = -3              x + 2 = 0

x  = 3             x = - 2

CS =  (-2; 3)

x² - 2x  - 3 = 0

x           - 3

x           + 1

-3x + 1 = -2x

(x - 3)(x + 1) =  0

x - 3 = 0         x + 1 = 0

x = 3              x = - 1

CS = ( -1; 3 )