SOLUTION: Solve by factoring: 4m^2 + 7m = 0 4m+7=0 4m=-7 m = -7/4 m = (-7/4, 0) Where am I going wrong? What should I be doing? It was marked wrong with no explanation.

Question 552351: Solve by factoring: 4m^2 + 7m = 0
4m+7=0
4m=-7
m = -7/4
m = (-7/4, 0)
Where am I going wrong? What should I be doing? It was marked wrong with no explanation.
Answer by mananth(16946) (Show Source): You can put this solution on YOUR website!
4m^2 + 7m = 0
m(4m+7)=0
if m= 0 the equation is satisfied.
if m=-7/4 the equation is satisfied.
so m= 0 OR -7/4
You are right but you must keep the m after factoring outside
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