ACT 2019 April(B04) Math Question 16 Explanation - ACT Helper

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2019 April(B04) Math Question 16
Quadratic Equations
- Factoring
Choice H
$x^{2} + 3 x - 54 = 0$ $\Rightarrow (x + 9) (x - 6) = 0$ $\Rightarrow x = - 9, 6$ $\Rightarrow - 9 + 6 = - 3$
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