Question

equação do 2 grau " x ao quadrado + 5x -6 = 0

Answer 1

x²+5x-6=0
a=1 b=5 c=-6
∆=5²-4.1.(-6)
∆=25+24
∆=49
x=-5+-√¯49/2.1
x=-5+-7/2
Raiz 1
x=-5+7/2
x=2/2 x=1 

Raiz 2
x=-5-7/2
x=-12/2
x=-6