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Perform the Indicated Operations $27 \sqrt { 7 } - 6 \sqrt { 7 }$

Question 49

Multiple Choice

Perform the indicated operations.
- $27 \sqrt { 7 } - 6 \sqrt { 7 }$

A) 21
B) $33 \sqrt { 7 }$
C) 147
D) $21 \sqrt { 7 }$

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