Answer
$m=-6, 1$
Work Step by Step
$m^2+5m-6=0$
$m^2+6m-m-6=0$
$(m^2+6m)-(m+6)=0$
$m(m+6)-1(m+6)=0$
$(m+6)(m-1)=0$
$m+6=0$
$m=-6$
$m-1=0$
$m=1$
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