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Addition and Subtraction of Algebraic Expressions

Subtract 7x -...

Question

Subtract $7 x - 3 x^{2}$ from $4 x + 8 x^{2}$

A

- 3x

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B

11x² − 5x

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C

11x²

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D

11x² − 3x

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Solution

The correct option is C
11x² − 3x

$4 x + 8 x^{2}$
$7 x - 3 x^{2}$
$(-) (+)$
____________
$- 3 x + 11 x^{2}$

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