Question

What is the index? qrt[5]{7x} " alt=" - 12 \sqrt[5]{7x} " align="absmiddle" class="latex-formula">
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Answer 1

12(7x)^1/5

This is simplification into index form, the index itself is the 5th root of 7x if you just wanted to state what it is

Answer 2

The correct answer is -12×(7x) 1/5 .