Question

2
$2x ^{2} + 11x - 21$
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Answer 1

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Answer 2

Answer:

$= > 2 {x}^{2} + 11x - 21 \\ \\ = > 2 {x}^{2} + (14 - 3)x - 21 \\ \\ = > 2 {x}^{2} + 14x - 3x - 21 \\ \\ = >2 x(x + 7) - 3(x + 7) \\ \\ = > (x + 7)(2x - 3)$