-2x^3+3x^2≥5x
-2x³+3x²-5x ≥ 0
-2x³+3x²-5x=0
x(-2x²+3x-5)=0
x=0 lub -2x²+3x-5=0
-2x²+3x-5=0
a=-2
b=3
c=-5
Δ=b²-4ac
Δ=3²-4·(-2)·(-5)=9-40=-31
Stąd:
x∈(-∞;0>
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-2x³+3x²-5x ≥ 0
-2x³+3x²-5x=0
x(-2x²+3x-5)=0
x=0 lub -2x²+3x-5=0
-2x²+3x-5=0
a=-2
b=3
c=-5
Δ=b²-4ac
Δ=3²-4·(-2)·(-5)=9-40=-31
Stąd:
x∈(-∞;0>