WYZNACZ PIERWIASTKI WIELOMIANU:W(x)=-4x do 4 +20x do 3-4x do 2 !!!!!!!!
PILNE!!!!!!!!
-4x⁴+20x³-4x²=0
-4x²(x²-5x+1)=0
-4x²=0
x=0
x²-5x+1=0
Δ=(-5)²-4*1*1
Δ=25-4
Δ=21
√Δ=√21
x₁=(-(-5)-√21)/(2*1)
x₁=(5-√21)/2
x₁=½(5-√21)
x₂=(-(-5)+√21)/(2*1)
x₂=(5+√21)/2
x₂=½(5+√21)
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-4x⁴+20x³-4x²=0
-4x²(x²-5x+1)=0
-4x²=0
x=0
x²-5x+1=0
Δ=(-5)²-4*1*1
Δ=25-4
Δ=21
√Δ=√21
x₁=(-(-5)-√21)/(2*1)
x₁=(5-√21)/2
x₁=½(5-√21)
x₂=(-(-5)+√21)/(2*1)
x₂=(5+√21)/2
x₂=½(5+√21)