Question

What is 3 root of 72 ?

A. https://static.k12.com/bank_packages/files/media/a12122a7a929ed59fc166d6db6177c09.png

B. https://static.k12.com/bank_packages/files/media/20305a763363b2368858a44e6634c9b7.png

C. https://static.k12.com/bank_packages/files/media/54723856009732cab24a145d1fc78a9f.png

D. https://static.k12.com/bank_packages/files/media/82bac8a9359eaedf6d6ad72f55ce0ab8.png

Help quick please!

Answer 1

C.

Answer 2

https://socratic.org/questions/what-is-the-cube-root-of-72

Answer 3

Hint:
\[\Large \sqrt[3]{72}=\sqrt[3]{8*9}\]
\[\Large \sqrt[3]{72}=\sqrt[3]{2^3*9}\]
\[\Large \sqrt[3]{72}=\sqrt[3]{2^3}*\sqrt[3]{9}\]

Answer 4

Can you explain why please? Just so I know you're not just guessing lol.

Answer 5

Look at the link i provided and it shows a step by step explanation

Answer 6

You'll use these two rules
\[\Large \sqrt[n]{x*y}= \sqrt[n]{x}* \sqrt[n]{y}\]
\[\Large \sqrt[n]{x^n}=x\]
The second rule must have n be an odd number

Answer 7

Oh okay. Thank you both so much! I have a few more questions though.. could you help?

Answer 8

sure

Answer 9

ok hold on lol

Answer 10

What is 3 root of 135?

A. https://static.k12.com/bank_packages/files/media/0fa6230e203e41fe7c32b464a0734aae.png

B. https://static.k12.com/bank_packages/files/media/9e863b5efc87d0ea7deb90255ef90088.png

C. https://static.k12.com/bank_packages/files/media/ea28cb8b42388eb7dbba6ca6fde1be84.png

D. https://static.k12.com/bank_packages/files/media/5c80edc6bad029093d4efdb6708c79bf.png

Answer 11

https://www.algebra.com/services/rendering/simplifier.mpl

Answer 12

I am confused..

Answer 13

are you sure it's 135 in the root?

Answer 14

I think so...

Answer 15

Yep it is i just checked.

Answer 16

try this video to see if it helps you understand better

Answer 17

Hint
\[\Large \sqrt[3]{135}=\sqrt[3]{27*5}\]
\[\Large \sqrt[3]{135}=\sqrt[3]{3^3*5}\]
\[\Large \sqrt[3]{135}=\sqrt[3]{3^3}*\sqrt[3]{5}\]

Answer 18

I still dont get it... Tell me which one it is and then try and explain and then I will probably understand lol.

Answer 19

https://www.youtube.com/watch?v=Ds8ijPsg26g

Answer 20

@jas.2002 you agree that 135 = 27*5 right?

Answer 21

Yeah sorry I was gone lol