Respuestas

  • Usuario de Brainly
2012-08-21T22:28:25+02:00

x*2+2x-x-2-(2x*2+8x-3x-12)-x+14=0

x*2+x-2-2x*2-8x+3x+12-x+14=0

-x*2-5x+24=0          (-1)

x*2+5x-24=o

(x     +    8      )(x       -    3  )=0

x+8=0                x-3=0

x1=-8                   x2=3