Đáp án: `=-2123`
Giải thích các bước giải:
`-13 xx (57-34) + 57 xx (13-45)`
`=-13xx57+13xx34+57xx13-57xx45`
`=(57xx13-57xx13)+13xx34-57xx45`
`=13xx34-57xx45`
`=442-2565`
`=-2123`
`-13×(57-34)+57×(13-45)`
`= -13×57 + 13×34 + 57×13 - 57×45`
`= (-13×57 + 57×13) +13×34 - 57×45`
`= 0 +442 - 2565`
`= -2123`
(Ăn tết zui zẻ ạ)
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Vẽ đậu mầm :v $\text{Ngoài lề:Có bn chs liên quân ko :/}$
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