Add or Subtract $\sqrt { 112 } + \sqrt { 448 }$

question 273

Multiple Choice

Add or subtract. Assume all variables represent positive real numbers.
- $\sqrt { 112 } + \sqrt { 448 }$

• A) \(- 4 \sqrt { 7 }\)
• B) \(12 \sqrt { 14 }\)
• C) 84
• D) \(12 \sqrt { 7 }\)

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