Question 774793
denominator can't be zero since we can't divide by zero so set the bottom equal to zero and solve for m
{{{5m^2+m=0}}} factor out m
m(5m+1)=0 so now you have two parts to work with, first one is 
m=0 so m can't be zero, and second part is 
5m+1=0 solve for m, so subtract 1 from each side and you get
5m=-1 now divide each side by 5 and you get
m=-1/5 so m can't be -1/5 either