## primeavlqueen22 2 years ago Referring to the figure, simplify the expression. http://www.ppstest2.com/images2/AL9005.jpg

1. Christina42872

just find the square root of 54

2. Christina42872

7.34846922835

3. johnweldon1993

As @Christina42872 has said

4. Christina42872

thnx but i dont have a twitter

5. primeavlqueen22

thats what i put and it was wrong :(

6. Christina42872

well that is ur problem

7. primeavlqueen22

?

8. johnweldon1993

try $3\sqrt{6}$

9. timo86m

it said simplify not evaluate

10. timo86m

when it evaluate then you put 7.34.... when it is simplify you the the 3 sqrt(6)

11. johnweldon1993

exactly @timo86m

12. primeavlqueen22

so its 7.34 oh ok :) yay

13. timo86m

no!

14. Christina42872

yes it is see i was right

15. johnweldon1993

no that would be evaluating..you're simplifying

16. timo86m

3 * sqrt(6)

17. Christina42872

that is 7.32

18. timo86m

3 * sqrt(6) just as is

19. primeavlqueen22

so is it 7.32 or 7.34

20. johnweldon1993

just think of it like this what is $\sqrt{54}$ it can be written as $\sqrt{9}\sqrt{6}$ right? because the squareroot of 9 times the square root of 6 is the square root of 54 right? so what is the square root of 9? 3 so your answer is 3 * square root 6

21. Christina42872

22. johnweldon1993

let me ask you if I asked you to simplify x * x ...what would you say that is? x² correct? now what if I asked you to EVALUATE x * x ? what would you say? you don't know it. the difference between evaluating and simplifying

23. primeavlqueen22

are you asking me or her

24. johnweldon1993

either...I'm trying to point out...that the question asked to simplify...not solve...the answer would be 3 * square root 6