Respuesta :
ab-ac=a(b-c)
find commonf actor
13x=13*x
29x=29*x
common factor is x
x(13)-x(29)=x(13-29)
C
find commonf actor
13x=13*x
29x=29*x
common factor is x
x(13)-x(29)=x(13-29)
C