22x2 -8x -14 = 0
ax2 bx c = 0
a = 22
b = -8
c = -14
Δ = b2-4ac
Δ = -8² - (4 * 22 * -14)
Δ = 64 - (4*-308)
Δ = 64 - (-1232)
Δ = 1296 Δ > 0
22x2-8x-14=0
x = -b ∓ √Δ 2a
x' = 8 - √1296 2*22 = 8 - 36.0 44 = -28.0 44 = -0.636363636364
x" = 8 + √1296 2*22 = 8 + 36.0 44 = 44.0 44 = 1.0
x' = -308.0
x" = 484.0
S = {x ∈ R / x' = -308.0, x" = 484.0 }