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![](https://rs.olm.vn/images/avt/0.png?1311)
\(\left(-25\right)\times\left(75-45\right)-75\times\left(45\times25\right)\)\(=\) \(\left(-25\right)\times30-75\times1125\)
\(=\left(-750\right)-84375\)
\(=-85125\)
= (- 25) . 30 - 75 . 1125
= -750 - 84375
= -82125
Ủng hộ mik nha
![](https://rs.olm.vn/images/avt/0.png?1311)
`(-25).(75-45)-75.(45-25)`
`=-25.30-75.20`
`=-750-1500`
`=-2250`
![](https://rs.olm.vn/images/avt/0.png?1311)
( - 25 ) . ( 75 - 45 ) - 75 . ( 45 - 25 )
= ( - 25 ) . 75 - ( - 25 ) . 45 - 75 . 45 - ( - 75 ) . 25
= ( - 25 ) . 45 - 75 . 45
= [ ( - 25 ) + 75 ] . 45
= 50 . 45
= 2250
![](https://rs.olm.vn/images/avt/0.png?1311)
\(\left(-25\right).\left(75-45\right)-75.\left(45-25\right)\\ =\left(-25\right).30-75.20\\ =-750-1500\\ =-2250\)
=-25*75+25*45-75*45+75*25
=25*45-75*45
=45*(-50)
=-2250
![](https://rs.olm.vn/images/avt/0.png?1311)
a, ( -31 ) + ( -95 ) + 131 + ( -5 )
= <( -31 ) + 131> + <( -95 ) + ( -5 )>
= 100 + ( -100 )
= 0
Dấu < > là ngoặc vuông nha
![](https://rs.olm.vn/images/avt/0.png?1311)
(-25).(75-45)-75.(45-25)
= -25 . 75 - ( -25 ) . 45 - 75 . 45 - ( -75 ) . 25
= -25 . 75 + 25 . 45 - 75 . 45 + 75 . 25
= 75 . ( -25 + 25 ) + 45 . ( 25 - 75 )
= 75 . 0 + 45 . -50
= 0 + ( -2250 )
= -2250
~Xong rồi nhé bạn~
![](https://rs.olm.vn/images/avt/0.png?1311)
(-25).(75 - 45) - 75.(45 - 25)
= [(-25).75 - (-25).45] - (75.45 - 75.25)
= (-25).75 + 25.45 - 75.45 + 75.25
= [(-25).75 + 75.25) - (75.45 - 25.45)
= 0 - 45.(75 - 25)
= -45.50
= -2250