## anonymous 5 years ago i dont know how to write this so ill try my best. 3with the square root sign under the square root is 72x^8 and i have to simplify it

1. anonymous

$\sqrt[3]{72x^8}$

2. anonymous

$\sqrt[4]{486x ^{12}y ^{14}}$

3. anonymous

i solved the first one..

$\sqrt{8\times9 \times x ^{8}}$ $\sqrt{8}\times \sqrt{9}\times \sqrt{x ^{6}}\times \sqrt{x ^{2}}$ Extracting the cube Please note that there should be a tiny 3 in the radical. $2x ^{^{2}}\sqrt[3]{9}\times \sqrt[3]{x ^{2}}$