giúp mk mn ơi 1988 x 1996 + 1997 + 1995 ____________________________ 1997 x 1996 – 1995 x 1996

0 bình luận về “giúp mk mn ơi 1988 x 1996 + 1997 + 1995 ____________________________ 1997 x 1996 – 1995 x 1996”

1. `(1988xx1996+1997+1995)/(1997xx1996-1995xx1996)`
   `=(1988xx1996+1997+1995)/(1996xx(1997-1995))`
   `=(1998xx1996+1996+1996)/(1996xx2)`
   `=(1998xx1996+1996xx1+1996xx1)/(1996xx2)`
   `=(1996xx(1998+1+1))/(1996xx2)`
   `=(1996xx2000)/(1996xx2)`
   `=2000/2=1000`

    

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2. 1988 x 1996 + 1997 + 1995

   ____________________________  

   1997 x 1996 – 1995 x 1996

      1988 x 1996 + 1996 + 1996

   =____________________________  

      1996 x (1997 – 1995 )

      1988 x 1996 + 2 x 1996

   =____________________________  

               1996 x 2

           1996 x (1988 + 2 )

   =____________________________  

                1996 x 2 

           2000

   =_____________

             2  

   =1000

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