Respostas

2014-07-16T21:46:19-03:00
Olá, Xeugatinho!

x² + 10x + 24 = 0
a = 1
b = 10
c = 24

Δ = b² - 4.a.c
Δ = 10² - 4.1.24
Δ = 100 - 96
Δ = 4

-b +- √Δ / 2.a
-10 +- √4 / 2.1
-10 +- 2 / 2

x' = -10+2/2 = -8/2 = -4
x'' = -10-2/2 = -12/2 = -6
1 4 1