22x2 +23x +1 = 0
ax2 bx c = 0
a = 22
b = 23
c = 1
Δ = b2-4ac
Δ = 23² - (4 * 22 * 1)
Δ = 529 - (4*22)
Δ = 529 - (88)
Δ = 441 Δ > 0
22x2+23x+1=0
x = -b ∓ √Δ 2a
x' = -23 - √441 2*22 = -23 - 21.0 44 = -44.0 44 = -1.0
x" = -23 + √441 2*22 = -23 + 21.0 44 = -2.0 44 = -0.0454545454545
x' = -484.0
x" = -22.0
S = {x ∈ R / x' = -484.0, x" = -22.0 }