# Math Help - cube roots

1. ## cube roots

Okay I desperately need help with this one:

cube root of 72*t^8 power.

Sorry, new to the forum and not sure how to write it out using math signs.

2. Originally Posted by rebel15851
Okay I desperately need help with this one:

cube root of 72*t^8 power.

Sorry, new to the forum and not sure how to write it out using math signs.
Use the usual index laws to simplify $\displaystyle \left( 72 t^8\right)^{1/3}$. Note that 72 = 8x9 = 2^3 x 9.