如果A乘以B等於260,那麼A乘以2B等於幾,3A乘以B等於幾,A乘以(B除2)=幾(A除4)*(B*4)=

如果A乘以B等於260,那麼A乘以2B等於幾,3A乘以B等於幾,A乘以(B除2)=幾(A除4)*(B*4)=

A X B=260
A X 2B=2AB=2 X 260 = 520
3A X B=3 X 260 = 780
A X B/2 = 260 / 2 = 130
A/4 X B X 4 = A X B=260