ACT 2021 June(D06) Math Question 10 Explanation - ACT Helper

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2021 June(D06) Math Question 10
Algebraic & Function Expressions
- Simplify Algebraic Expressions
Choice H
$= 6 a^{3} - 5 a c^{2} + 12 c - 4 c + 3 a^{3} + 2 a c^{2}$ $= (6 a^{3} + 3 a^{3}) + (- 5 a c^{2} + 2 a c^{2}) + (12 c - 4 c)$ $= 9 a^{3} - 2 a c^{2} + 8 c$
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