Question

quick adv algebra question

Answer 1

\[\sqrt[5]{1215}= ?\]

Answer 2

4.139

Answer 3

thanks i know what the decimal is i need someone to EXPLAIN to me step by step reduction to RADICAL form

Answer 4

hint:
\[\large 1215 = {3^5} \times 5\]

Answer 5

since:
\[1215 = 135 \times 9 = 15 \times 9 \times 9 = 3 \times 5 \times 9 \times 9\]

Answer 6

Applying the hint given above you can pull out a three from the radical.
Thus simplifying it to\[3\sqrt{5}\]

Answer 7

better is:
\[\large 3\sqrt[5]{5}\]