Question

Equação Do 2Grau
a)x2 5x +6 = 0
b)x2 - 8 x+12 =0
c)x2 + 2x-8 = 0
d)x2 - 5x = 8 = 0
e)x2 - 8x + 6 = 0
f)x2 - 4 x -5 = 0

Answer 1

a) a=1 b= 5 c=6
delta= b2-4.a.c
5.5-4.1.6
25-24
=1
x=-b+\- raiz quadrada de delta
------------------------------------
2.a

x= -5 +- 1
----------
2.1
x1= -5+1
------- = -2
2

x2= -5-1
------ = - 3
2
s= {-3,-2}