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Which choice is equivalent to the expression below? 20 - 5+ 45 A. 4.15 B. 55 C. 135 D. 95
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Which choice is equivalent to the expression below? 20 - 5+ 45 A. 4.15 B. 55 C. 135 D. 95

User Falter
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\begin{gathered} \sqrt[]{20}-\sqrt[]{5}+\sqrt[]{45\text{ }}=\text{ }\sqrt[]{4\text{ x 5}}\text{ -}\sqrt[]{5}\text{ + }\sqrt[]{9\text{ x 5}} \\ =2\sqrt[]{5}-\sqrt[]{5}+3\sqrt[]{5} \\ =4\sqrt[]{5} \end{gathered}

User Sunafegon
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