Question 444619
1)5,-1,3
x-5=0 x+1=0 x-3=0
(x-5)(x+1)(x-3)=0
{{{x^(3)-7*x^2+7*x+15=0}}}
...
2) 1,7,-5
x-1=0 x-7=0 x+5=0
(x-1)(x-7)(x+5)=0
{{{x^(3)-3*x^2-33*x+35=0}}}
...
3)-1,1,-6
x+1=0 x-1=0 x+6=0
(x+1)(x-1)(x+6)=0
{{{x^(3)+6*x^2-x-6=0}}}
...
4) 2,-2,-3
x-2=0 x+2=0 x+3=0
(x-2)(x+2)(x+3)=0
{{{x^(3)+3*x^2-4*x-12=0}}}