Perform the Indicated Operation $\sqrt { 7 } ( \sqrt { 5 } - \sqrt { 3 } )$

question 267

Multiple Choice

Perform the indicated operation. Assume that all variables represent positive real numbers.
- $\sqrt { 7 } ( \sqrt { 5 } - \sqrt { 3 } )$

• A) \(\sqrt { 35 } - \sqrt { 21 }\)
• B) \(7 \sqrt { 5 } + 7 \sqrt { 3 }\)
• C) \(\sqrt { 56 }\)
• D) \(8 \sqrt { 7 }\)

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