Question 273743
You're on the right track. Factor out a 'c' to get {{{c(c-5)=0}}}. Now set each factor equal to zero to get {{{c=0}}} or {{{c-5=0}}}. Finally solve the second equation for 'c' to get {{{c=5}}}



So the solutions are {{{c=0}}} or {{{c=5}}}