giúp mk mn ơi
1988 x 1996 + 1997 + 1995
____________________________
1997 x 1996 – 1995 x 1996
giúp mk mn ơi 1988 x 1996 + 1997 + 1995 ____________________________ 1997 x 1996 – 1995 x 1996
By Hailey
By Hailey
giúp mk mn ơi
1988 x 1996 + 1997 + 1995
____________________________
1997 x 1996 – 1995 x 1996
`(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`
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