Question 952685
{{{m^2- (4/7)m - 45 = 0}}}
{{{m^2-(4/7)m+(2/7)^2=45+(2/7)^2}}}
{{{(m-2/7)^2=2205/49+4/49}}}
{{{(m-2/7)^2=2209/49}}}
{{{m-2/7=0 +- sqrt(2209/7)}}}
{{{m=2/7 +- 47/7}}}
{{{m=-45/7}}} and {{{m=7}}}