Rozwiąż równanie 4x^3 -x^2 -16x +4 =0
4x^3 -x^2 -16x +4 =0
x2(4x-1)-4(4x-1) = 0
(x2 - 4)(4x-1) = 0
(x-2) (x+2) (4x-1) = 0
x=2 lub x=-2 lub x=1/4
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4x^3 -x^2 -16x +4 =0
x2(4x-1)-4(4x-1) = 0
(x2 - 4)(4x-1) = 0
(x-2) (x+2) (4x-1) = 0
x=2 lub x=-2 lub x=1/4