## tinaballerina 2 years ago HELPPP FAST :( sqrt 5(8+3 sqrt 6) 8 sqrt5 + 3 sqrt30 5 sqrt 10 130 None of the above

1. sritama

$\sqrt{5}(8+3\sqrt{6)}$

2. sritama

is it the problem @tinaballerina ?

3. tinaballerina

yessum @sritama

4. sritama

just multiply $(8+3\sqrt{6}) with \sqrt{5}$

5. sritama

you will find option A is correct

6. tinaballerina

Thank you very much @sritama

7. tinaballerina

could you help with my other problem?

8. sritama

welcome :) yeah,i will try..

9. tinaballerina

you seem to comprehend my questions , while everyone else is smart about their answers

10. sritama

oh,is it? :)

11. tinaballerina

$(4-\sqrt{3} )(12+5\sqrt{3)}$

12. sritama

$(4\times12)+20\sqrt{3}-12\sqrt{3}-15$

13. sritama

the answer is 33+8 sqart 3

14. tinaballerina

ugh i need to understand this by early january for finals but , how did you learn all of this so well? do you have any ways to understand better or any websites?

15. sritama

you can take the help of http://www.wolframalpha.com/

16. sritama

actually all you have to do is to multiply

17. sritama

if you have a problem like that $(a+\sqrt{b})(c+\sqrt{d})$ the answer is $ac+c \sqrt{b}+a \sqrt{d}+\sqrt{bd}$

18. tinaballerina

OH I REMEMBER NOW.

19. tinaballerina

F. O. I. L

20. tinaballerina

Thank you so very much

21. sritama

yeah..right :)

22. tinaballerina

i wanna see if i get this problem right, will you check it??

23. sritama

of course..

24. sritama

post it

25. tinaballerina

$(5+\sqrt{3}) (5-\sqrt{3})$

26. tinaballerina

$25-12\sqrt{3}$

27. sritama

can you tell me how do you got it?

28. tinaballerina

5x5 first, equaling 25

29. sritama

right,then?

30. tinaballerina

sqrt 3 times 5

31. sritama

yes..next?

32. tinaballerina

sqrt 3 times - sqrt 3

33. tinaballerina

oh im sorry i skipped one

34. tinaballerina

5 times -sqrt 3

35. sritama

yes,it will be -5 times sqrt 3

36. tinaballerina

-5?

37. sritama

yeah,|dw:1355982996650:dw|

38. sritama

tell me if you dont get it..

39. tinaballerina

i believe i do :))!

40. sritama

ok,now say what will be the answer? :)

41. tinaballerina

42. sritama

the answer will be the first one..

43. tinaballerina

22?

44. sritama

yes

45. sritama

|dw:1355983409853:dw|

46. tinaballerina

ah i see

47. sritama

ok,you get it?

48. tinaballerina

yes! thank you

49. sritama

heartily welcome..