## ExtremeAnon 2 years ago Simplify, help please!!??

1. ExtremeAnon

$\LARGE 3\sqrt{128}$

2. lyzzy7

Wait, do you mean 128 (divided) by 3? or the squareroot?

3. fernando12

33.94112

4. hartnn

its cube root, right ? $$\huge \sqrt[3]{128}$$

5. ExtremeAnon

$\large A) 192\sqrt{2}$ $\large B) 24\sqrt{2}$ $\large C) 11\sqrt{2}$ $\large D) 8\sqrt{2}$

6. ExtremeAnon

@hartnn No, it's just $\LARGE 3\sqrt{128}$

7. hartnn

ok, can u simplify $$\huge \sqrt{128}=?$$

8. fernando12

c

9. ExtremeAnon

yes? i think?

10. ExtremeAnon

@hartnn

11. hartnn

write it as 128 = 64*2 and u know square root of 64 ?

12. ExtremeAnon

8, right?

13. hartnn

$$\text{yes so its }8\sqrt {2}$$ and 3 was multiplied with it, so u get ?

14. ExtremeAnon

.... i don't know. do i multiply the 8 & 3 to make 24?

15. hartnn

yes!

16. ExtremeAnon

so it would be B?

17. hartnn

absolutely :)

18. ExtremeAnon

Thank you so much for explaining it :)

19. hartnn

welcome ^_^

20. fernando12

is c

21. ExtremeAnon

@fernando12 How did you get C?

22. hartnn

no, it isn't c.....

23. fernando12

in my book