Question 1059401
1. One real root, {{{x=4}}}, the other roots are complex.
.
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2. One real root, 
{{{2x-1=0}}}
{{{2x=1}}}
{{{x=1/2}}}
The other roots are complex and there are two of them,
{{{x^2+7=0}}}
{{{x^2=-7}}}
{{{x^2=7(-1)}}}
{{{x=0 +- sqrt(7)i}}}