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x²(2x-1)-3(2x-1)=0
(x²-3)(2x-1)=0
(x-√3)(x+√3)(2x-1)=0
x=√3 v x=-√3 v x=1/2
x²(2x-1)-3(2x-1)=0
(x²-3)(2x-1)=0
(x-√3)(x+√3)(2x-1)=0
x₁=√3 x₂=-√3 x₃=½
metoda grupowania x²(2x-1)-3(2x-1)=0
(2x-1)(x²-3)=0
2x-1=0 lub x²-3=0
x=1/2 lub² x=√3 lub x=-√3