22x2 +17x +3 = 0
ax2 bx c = 0
a = 22
b = 17
c = 3
Δ = b2-4ac
Δ = 17² - (4 * 22 * 3)
Δ = 289 - (4*66)
Δ = 289 - (264)
Δ = 25 Δ > 0
22x2+17x+3=0
x = -b ∓ √Δ 2a
x' = -17 - √25 2*22 = -17 - 5.0 44 = -22.0 44 = -0.5
x" = -17 + √25 2*22 = -17 + 5.0 44 = -12.0 44 = -0.272727272727
x' = -242.0
x" = -132.0
S = {x ∈ R / x' = -242.0, x" = -132.0 }