-1x2 -8x -16 = 0
ax2 bx c = 0
a = -1
b = -8
c = -16
Δ = b2-4ac
Δ = -8² - (4 * -1 * -16)
Δ = 64 - (4*16)
Δ = 64 - (64)
Δ = 0 Δ = 0
x = -b 2*a
x = 8 2*-1
x = -4.0
S = {x ∈ R / x = -4.0}
-1x2 -8x -16 = 0
ax2 bx c = 0
a = -1
b = -8
c = -16
Δ = b2-4ac
Δ = -8² - (4 * -1 * -16)
Δ = 64 - (4*16)
Δ = 64 - (64)
Δ = 0 Δ = 0
x = -b 2*a
x = 8 2*-1
x = -4.0
S = {x ∈ R / x = -4.0}