Question 750103
{{{(x^3+1)/10=4/x}}} can be written as (x^3+1)/10=4/x
Multiplying both sides of the equal sign times {{{10x}}} we get the equivalent equation
{{{x(x^3+1)=40}}} --> {{{x^4+x=40}}} --> {{{x^4+x-40=0}}}
Comparing it to {{{x^4+ax+b=0}}} we find
{{{a=1}}} and {{{b=-40}}}