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Definition of Functions

Solve for x: ...

Question

Solve for x: $4 x^{2} + 14 x + 6$

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Solution

$4 x^{2} + 14 x + 6$
$= 4 x^{2} + 12 x + 2 x + 6$
$= 4 x (x + 3) + 2 (x + 3)$
$= (4 x + 2) (x + 3)$
$= x = \frac{- 1}{2}, x = 3$

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