Simplify the radical expression by factoring out the largest perfect nth power. Assume that all variables are positive.

A.
B. y4 - 7
C.
D. 7y4

Answer: A

Mathematics

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A. domain: all real numbers range: {y|y ? 16} B. domain: {x|x ? -4} range: {y|y ? 16} C. domain: all real numbers range: {y|y ? -16} D. domain: {x|x? 4} range: {y|y ? 16}

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