Question 1021814
{{{x^4+2x^3=10x^2}}}
{{{x^4+2x^3-10x^2=0}}}
{{{x^2(x^2+2x-10)=0}}}
{{{x^2(x^2+2x+1-10-1)=0}}}
{{{x^2((x+1)^2-11)=0}}}
So,
{{{x=0}}}
and
{{{(x+1)^2-11=0}}}
{{{(x+1)^2=11}}}
{{{x+1=0 +- sqrt(11)}}}
{{{x=-1 +- sqrt(11)}}}
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