Add or Subtract $\sqrt { 5 x ^ { 2 } } + 7 \sqrt { 80 x ^ { 2 } } - 3 \sqrt { 80 x ^ { 2 } }$

question 232

Multiple Choice

Add or subtract. Assume all variables represent positive real numbers.
- $\sqrt { 5 x ^ { 2 } } + 7 \sqrt { 80 x ^ { 2 } } - 3 \sqrt { 80 x ^ { 2 } }$

• A) \(17 x \sqrt { 102 }\)
• B) \(4 \times \sqrt { 5 }\)
• C) \(4 x \sqrt { 102 }\)
• D) \(17 x \sqrt { 5 }\)

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