Question

x al cuadrado mas mx menos dos igual 0

Answer 1

x² - x + 2 = 0

x        - 2

x        + 1

-2x + x  = -x

(x -2)(x + 1) = 0

x - 2 = 0      x + 1 = 0

x = 2           x = -1

CS = (-1; 2)

Eternamente axllxa