Simplify the Expression $7 ^ { 2 } r ^ { - 7 } \left( r ^ { 8 } \right) ^ { 5 }$

question 245

Multiple Choice

Simplify the expression. Assume that the variable represents a nonzero real number. Write the answer using a positive exponent only. $7 ^ { 2 } r ^ { - 7 } \left( r ^ { 8 } \right) ^ { 5 }$

• A) \(\frac { 49 } { r ^ { 33 } }\)
• B) \(49 r ^ { 6 }\)
• C) \(7 r ^ { 6 }\)
• D) \(7 r ^ { 47 }\)
• E) \(49 r ^ { 33 }\)

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