Question

mim ajude a resolver esta equação x2+5x+6=0

Answer 1

x² + 5 x + 6 = 0
Δ = b² - 4 .a c
Δ = 5² - 4 . 1 . 6
Δ = 25 - 24
Δ = 1 ⇒ √1 = 1
x´= -b +ou- 1/2.a
x´= -5 +ou - 1/2
x´= -5 + 1/2
x´= -4 /2
x´= -2
x´´ = -5 - 1/2
x´´ = -6/2
x´´ = -3

S = {-3,-2}

Answer 2

x^2+5x+6=0
delta=25-4.1.(6)
delta=25-24
delta=1
X=-5 +- 1
2
x=-4/2 x'=-2
x=-6/2 x"=-3
V={-2,-3}