solve3
(* reciproche,irrazionali *)
Solve[2x^3-3x^2-3x+2==0,x]
{{x -> -1}, {x -> 1/2}, {x -> 2}}
;[o]
1
{{x -> -1}, {x -> -}, {x -> 2}}
2
Solve[3x^4+10x^3-10x-3==0,x]
{{x -> -1}, {x -> -3}, {x -> -1/3}, {x -> 1}}
;[o]
1
{{x -> -1}, {x -> -3}, {x -> -(-)}, {x -> 1}}
3
Solve[Sqrt[x]==2,x]
{{x -> 4}}
;[o]
{{x -> 4}}
Solve[(x-2)^(1/3)==-3,x] (* radice cubica *)
{{x -> -25}}
;[o]
{{x -> -25}}
Solve[Sqrt[x^2-2x+1]==3,x]
{{x -> -2}, {x -> 4}}
;[o]
{{x -> -2}, {x -> 4}}
Solve[(12x+1)^(1/3)+(4x-1)^(1/3)==(4)^(1/3),x]
{{x -> 1/4}, {x -> (-196 + 4*I*351^(1/2))/512},
{x -> (-196 - 4*I*351^(1/2))/512}}
;[o]
1 -196 + 4 I Sqrt[351] -196 - 4 I Sqrt[351]
{{x -> -}, {x -> --------------------}, {x -> --------------------}}
4 512 512