Question

2x2 + 11x + 5 = 0

usando a fórmula de bhaskara

Answer 1

2x²+11x+5=0

∆= -b²-4.a.c

a:2 b:11 c:5

∆= -11²-4.2.5
∆= 121-40
∆=81

X=-b +-√∆/2.a
x= -11+-√81/4
X=-11+-9/4

X+= -11+9/4
X+=-2/4
X+= -1/2

X- = -11-9/4
X- = -20/4
X = -5