Question 320072
{{{a(11a+1)=10}}}
{{{11a^2+a=10}}}
{{{11a^2+a-10=0}}}
{{{(11a-10)(a+1)=0}}}
Two solutions:
{{{11a-10=0}}}
{{{11a=10}}}
{{{highlight(a=10/11)}}}
.
.
.
{{{a+1=0}}}
{{{highlight(a=-1)}}}