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Simplify the Expression $7 \sqrt { 5 } + 8 \sqrt { 5 }$

Question 168

Multiple Choice

Simplify the expression. Assume all variables represent positive real numbers.
- $7 \sqrt { 5 } + 8 \sqrt { 5 }$

A) 75
B) $15 \sqrt { 10 }$
C) $15 \sqrt { 5 }$
D) $56 \sqrt { 5 }$

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