## weekskeith1666 2 years ago will someone help ,me please

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1. weekskeith1666

$-\sqrt{8}-4\sqrt{7}+2\sqrt{72}-2\sqrt{7}$

2. cammyabbo

all you can do is simplify

3. cammyabbo

4. weekskeith1666

can u work it out and show me please

5. cammyabbo

you can further simplify -$\sqrt{8}$

6. cammyabbo

yes

7. weekskeith1666

thank you

8. cammyabbo

$-\sqrt{8}$ is really -$\sqrt{4x2}$

9. cammyabbo

the 4 comes out as a 2 because the sq root of 4 is 2. put it out front with the negative sign

10. cammyabbo

-2$-\sqrt{2}$

11. cammyabbo

crap

12. cammyabbo

-2√2

13. cammyabbo

the -4√7 and -2√7 become -6√7

14. cammyabbo

2√72 can be 2√(9)(8)

15. cammyabbo

9 pops out as 3, multiply it with the 2 to get 6√8, this further simplifies too

16. cammyabbo

6√(4)(2)

17. cammyabbo

4 pops out as 2, times it by 6 for 12√2

18. cammyabbo

combine that with our other √2 we first simplified

19. cammyabbo

10√2 - 6√7 all done

20. weekskeith1666

21. cammyabbo

yes, you cant simplify any further

22. weekskeith1666

do u mind putin it all togther how do do it i want to try it on my own

23. weekskeith1666

like all of it on one page

24. cammyabbo

ya, give me a few min, I'll write it out

25. weekskeith1666

thanks ur the best im glad u helped me out means alot to me

26. cammyabbo

no Prob at all

27. weekskeith1666

just write it wen u get done with it

28. cammyabbo