Subtract by horizontal method:
$2 x - 4 y$ from $- 4 x + 3 y$

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Solution

Given polynomial $2 x - 4 y$ and $- 4 x + 3 y$
As per question
$- 4 x + 3 y - (2 x - 4 y)$
$= - 4 x + 3 y - 2 x + 4 y$
$= - 4 x - 2 x + 3 y + 4 y$
$= - 6 x + 7 y$
This is the required answer.

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