-3x2 -12x -12 = 0
ax2 bx c = 0
a = -3
b = -12
c = -12
Δ = b2-4ac
Δ = -12² - (4 * -3 * -12)
Δ = 144 - (4*36)
Δ = 144 - (144)
Δ = 0 Δ = 0
x = -b 2*a
x = 12 2*-3
x = -2.0
S = {x ∈ R / x = -2.0}
-3x2 -12x -12 = 0
ax2 bx c = 0
a = -3
b = -12
c = -12
Δ = b2-4ac
Δ = -12² - (4 * -3 * -12)
Δ = 144 - (4*36)
Δ = 144 - (144)
Δ = 0 Δ = 0
x = -b 2*a
x = 12 2*-3
x = -2.0
S = {x ∈ R / x = -2.0}