## anonymous 4 years ago Stupid Question

1. anonymous
2. anonymous

I cant seem to understand this^

3. anonymous

which part do you understand up to?

4. anonymous

x= 16 (21

5. anonymous

The square root of 336 is 18...

6. anonymous

?? anyone lol?

7. anonymous

The square root of 336 isn't 18 o-o

8. anonymous

!?!??!

9. anonymous

18 x 18= 324

10. anonymous

18.3

11. anonymous

That's if you enter it in your calculator. $4\sqrt{21}$is the radical form of it. Also, 18.3 is rounded, so it's less accurate

12. anonymous

Do you know how to simplify it so that it turns into the radical form?

13. anonymous

No, and I dont have time, Im reviewing for a test tomrrow.

14. anonymous

The answer is 18.3 watever right?

15. anonymous

They just did the rest to show you a diferent way?

16. anonymous

It's actually the standard way...

17. anonymous

Have you done this in class?

18. anonymous

Yeah like a thousands times.. I was just confused on how they did it in the textbook.

19. anonymous

Alright. So we want to divide the number by a perfect square,right? Like when $\sqrt{18}=\sqrt{9\times2}$

20. anonymous

We know that$\sqrt{9}=3$so the equation turns into $3\sqrt{2}$, leaving the 2 because it's not a perfect square and it cannot be divided more times to make a perfect square

21. anonymous

Ohhh

22. anonymous

Do you get it?

23. anonymous

yep

24. anonymous

Then do $\sqrt{48}$