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Simplify the Expression $- 8 \sqrt { 5 } + 6 \sqrt { 45 }$

Question 13

Multiple Choice

Simplify the expression. Assume all variables represent positive real numbers.
- $- 8 \sqrt { 5 } + 6 \sqrt { 45 }$

A) $10 \sqrt { 5 }$
B) $26 \sqrt { 5 }$
C) $- 10 \sqrt { 5 }$
D) $- 2 \sqrt { 5 }$

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