51. Simplify.
Assume that the variable represents a positive real number.
52. Simplify.
Write your answer using only a positive exponent.
Assume that the variable represents a positive real number.
53. Simplify the expression.
Write your answer using only positive exponents.
Assume that all variables are positive real numbers.
54. Simplify.
Write your answer without parentheses.
Assume that the variable represents a positive real number.
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