22x2 +23x -17 = 0
ax2 bx c = 0
a = 22
b = 23
c = -17
Δ = b2-4ac
Δ = 23² - (4 * 22 * -17)
Δ = 529 - (4*-374)
Δ = 529 - (-1496)
Δ = 2025 Δ > 0
22x2+23x-17=0
x = -b ∓ √Δ 2a
x' = -23 - √2025 2*22 = -23 - 45.0 44 = -68.0 44 = -1.54545454545
x" = -23 + √2025 2*22 = -23 + 45.0 44 = 22.0 44 = 0.5
x' = -748.0
x" = 242.0
S = {x ∈ R / x' = -748.0, x" = 242.0 }