ACT 2021 June(D06) Math Question 20 Explanation - ACT Helper

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2021 June(D06) Math Question 20
Exponents, Radicals, & Scientific Notation
- Radical Expressions
Choice G
$\sqrt{2} + \sqrt{8} + \sqrt{18}$ $= \sqrt{2} + \sqrt{4 \times 2} + \sqrt{9 \times 2}$ $= \sqrt{2} + \sqrt{4} \sqrt{2} + \sqrt{9} \sqrt{2} = \sqrt{2} + 2 \sqrt{2} + 3 \sqrt{2}$ $= 6 \sqrt{2}$
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