Respostas

2013-07-03T12:36:27-03:00

(c-3)/(2-c)=(-3-c)/(14-2)

(c-3)/(2-c)=(-3-c)/12

12(c-3)=(2-c)(-3-c)

12c-36=-6-2c+3c+c²

11c-c²-30=0

-c²+11c-30=0

c²-11c+30=0

delta=121-120

delta=1

c=(11+-1)2

c1=6

c2=5

1 5 1