22x2 +17x -14 = 0
ax2 bx c = 0
a = 22
b = 17
c = -14
Δ = b2-4ac
Δ = 17² - (4 * 22 * -14)
Δ = 289 - (4*-308)
Δ = 289 - (-1232)
Δ = 1521 Δ > 0
22x2+17x-14=0
x = -b ∓ √Δ 2a
x' = -17 - √1521 2*22 = -17 - 39.0 44 = -56.0 44 = -1.27272727273
x" = -17 + √1521 2*22 = -17 + 39.0 44 = 22.0 44 = 0.5
x' = -616.0
x" = 242.0
S = {x ∈ R / x' = -616.0, x" = 242.0 }