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3x+2=0
3x=-2 | (podzielić na) 3
x= ⅔
licze na naj ;)
a=3
b=2
c=0
Δ=b²-4ac
Δ=4-4*3*0=4
√Δ=2
x₁=(-b+√Δ)/2a
x₁=(-2+2)/6=0
x₁=0
x₂=(-b-√Δ)/2a
x₂=(-2-2)/6=-2/3
x₂=-2/3
Odp: rozwiązanie to ma 2 pierwiastki: 0 i -2/3