Simplify the Radical Expression $\sqrt { 28 x ^ { 2 } }$

question 3

Multiple Choice

Simplify the radical expression. The variable represents a positive real number. $\sqrt { 28 x ^ { 2 } }$

• A) \(2 + x \sqrt { 7 }\)
• B) \(2 + x + \sqrt { 7 }\)
• C) \(2 x \sqrt { 7 }\)
• D) \(7 x \sqrt { 5 }\)
• E) \(2 \sqrt { 7 x }\)

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