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Addition and Subtraction of Algebraic Expression

Subtract : ...

Question

Subtract : $4 x - 4 x^{2} + 7 x y$ From $6 x^{2} + 4 x y - 3$

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Solution

Subtract : $4 x - {4 x}^{2} + 7 x y$ from ${6 x}^{2} + 4 x y - 3$
${6 x}^{2} + 4 x y - 3 - (4 x - {4 x}^{2} + 7 x y)$
$= {6 x}^{2} + 4 x y - 3 - 4 x + {4 x}^{2} - 7 x y$
$= {10 x}^{2} - 4 x - 3 x y - 3$

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