Question

Помогите пожалуйста, срочно!!!​

Answer 1

$\displaystyle\bf\\\frac{m-1}{m+6} -\frac{m^{2} +4m-12}{m^{2} +12m+36}= \frac{m-1}{m+6} -\frac{m^{2} +4m-12}{(m+6)^{2} }= \\\\\\=\frac{(m-1)\cdot(m+6)-m^{2} -4m+12}{(m+6)^{2} } =\\\\\\=\frac{m^{2} +6m-m-6-m^{2}-4m+12 }{(m+6)^{2} } =\frac{m+6}{(m+6)^{2} } =\frac{1}{m+6} \\\\\\m=-6,2\\\\\\\frac{1}{m+6} =\frac{1}{-6,2+6}=-\frac{1}{0,2} =-\frac{10}{2} =-5$