The equivalent expression is [tex]1215^\frac x5[/tex]
The expression is given as:
rootindex 5 startroot 1,215 endroot superscript x
Rewrite properly as:
[tex]\sqrt[5]{1215^x}[/tex]
Apply the law of indices
[tex]1215^\frac x5[/tex]
Hence, the equivalent expression is [tex]1215^\frac x5[/tex]
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