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Add or Subtract $- 2 \sqrt { 6 } - 9 \sqrt { 54 }$

Question 45

Multiple Choice

Add or subtract. Assume all variables represent positive real numbers.
- $- 2 \sqrt { 6 } - 9 \sqrt { 54 }$

A) $- 11 \sqrt { 6 }$
B) $- 29 \sqrt { 6 }$
C) $- 25 \sqrt { 6 }$
D) $29 \sqrt { 6 }$

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