Find all zeros and fully factor the function f(x)=8x4+18x3205x2450x+125\displaystyle {f{{\left({x}\right)}}}={8}{x}^{{4}}+{18}{x}^{{3}}-{205}{x}^{{2}}-{450}{x}+{125}. Use integers and fractions for answers, not decimals.

The zeros are  

The fully factored form is f(x)=\displaystyle {f{{\left({x}\right)}}}=