Question 37169
{{{m^3 + 6*m^2 + 9*m}}} 
{{{(m^2 + 3*m)*(m + 3)}}}
{{{m*(m + 3)*(m + 3)}}}
{{{m*(m^2 +6*m +9)}}}
{{{m^3 + 6*m^2 + 9*m}}}
-------------------------
{{{b^2 - 6*b - 10}}}
complete the square
{{{b^2 - 6*b + 3^2 = 10 + 3^2}}}
{{{(b - 3)^2 = 19}}}
take sqrt of both sides
{{{b - 3 = + sqrt(19)}}} (+ or - sqrt)
{{{b = 3 + sqrt(19)}}}
check by plugging {{{b = 3 + sqrt(19)}}}
and {{{b = 3 - sqrt(19)}}}
into {{{b^2 - 6*b - 10}}}
result should be zero
it checks for me