Question 1030687
{{{f(x)=a(x+3)(x-1)(x-4)}}}
{{{f(2)=a(2+3)(2-1)(2-4)=30}}}
{{{a(5)(1)(-2)=30}}}
{{{a=-3}}}
So,
{{{f(x)=-3(x+3)(x-1)(x-4)}}}