Answers

2014-10-07T20:46:29+08:00
I am not sure: (x-3)(x+1)= 3, -1
Root-coefficient relationships:
a+b(consider as alpha and beta)= 2>0 (just ransom)
0
2014-10-07T21:22:01+08:00
X<-1 or x>3 is the answer i think
1 5 1