Respuestas

2012-10-19T21:04:23+02:00

14m al cuadrado -13m-12=0

7m                             +4=8m+

2m                             -3=-21m

                                       _____

                                       -13m

 

(7m-3)(2m+4)=0

m uno:

7m-3=0

m=3/7

 

m dos: 2m+4=0

2m+4=0

m=-4/2

m=-2