Respostas

2013-10-31T11:46:26-02:00
X²+11x+p=0
x1-x2=5
x1+x2=-11
--------------------
2x1 = -6
x1 = -6/2
x1 = -3

-3-x2 = 5
-x2 = 5+3
-x2 = 8 .(-1)
x2 = -8

x1.x2 = c/a
(-3).(-8) = p/1
p = 24
5 4 5