## anonymous 3 years ago WILL SOMEONE HELP ME

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1. anonymous

with what

2. anonymous

3. anonymous

wat u mean

4. anonymous

u i might be able to help u

5. anonymous

$-\sqrt{27}+3\sqrt{3}+2\sqrt{45}+3\sqrt{12}$

6. anonymous

all you can do here is simplify 3√12

7. anonymous

$2\sqrt{6}+3\sqrt{45}-2\sqrt{54}-3\sqrt{3}$

8. anonymous

3√12 is 3√4x3, the square root of 4 is 2 which pops out and u multiply the 3 by 2 to have 6√3

9. anonymous

you should have 9√3

10. anonymous

for the 2nd one or the 1st one

11. anonymous

ok, i thought this was one problem, so you want to simplify the first one right?

12. anonymous

yes

13. anonymous

−√27 + 3√3 + 2√45 +2√45 + 3√12 is where we start right

14. anonymous

crap i have 2squarerrot 45 twice

15. anonymous

take one out

16. anonymous

−√27 + 3√3 + 2√45 + 3√12

17. anonymous

yes that is right

18. anonymous

3√12 can become 3√(4)(3)

19. anonymous

how do u work it out

20. anonymous

since 2 is the SRoot of 4, it comes out to me multiplied by the 3 on the outside, leaving the 3 inside to become 6√3

21. anonymous

3(2)√3 which is 6√3, now you can add this to the other 3√3 in the problem

22. anonymous

add wat one and i think u so much for helpin me thanks

23. anonymous

−√27 + 3√3 +(6√3) + 2√45 you can only add radicals when they are the same inside

24. anonymous

25. anonymous

we can actually simplify the 2 sroot 45. Give me a few min to show you how. Come back in about 5 minutes and it will be done

26. anonymous

alright think u so much

27. anonymous

NP

28. anonymous