Question 894793
Subtract x from both sides:


{{{2x^2-11x+20=0}}}


Maybe factorable, but without looking to see,

{{{x=(11+- sqrt(121-4*2*20))/(2*2)}}}

{{{x=(11+- sqrt(121-160))/4}}}
{{{x=(11+- sqrt(-39))/4}}}
{{{highlight(x=(11+- i*sqrt(39))/4)}}}




In fact it was not factorable.  Also, the solutions are Complex with imaginary parts.