Ответ:
[tex]\color{red}{ - 49(4x + y - 2m) + 81(2x + 2y - m)}[/tex]
[tex]\color{red}{ - 49 \times 4x - 49y - 49( - 2m)} + 81 \times 2x + 81 \times 2y - 81m[/tex]
[tex]\color{red}{ - 196x - 49y + 98m + 162x + 162y - 81m}[/tex]
[tex]\color{red}{ - 34x + 113y + 17m}[/tex]
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Ответ:
[tex]\color{red}{ - 49(4x + y - 2m) + 81(2x + 2y - m)}[/tex]
[tex]\color{red}{ - 49 \times 4x - 49y - 49( - 2m)} + 81 \times 2x + 81 \times 2y - 81m[/tex]
[tex]\color{red}{ - 196x - 49y + 98m + 162x + 162y - 81m}[/tex]
[tex]\color{red}{ - 34x + 113y + 17m}[/tex]