## zepdrix one year ago Studay Tyme ugainnnn!

1. zepdrix

|dw:1432857499890:dw| @pooja195

2. pooja195

aww no more brown face:c

3. zepdrix

aww i forgot >.<

4. pooja195

;) its k i bet we will have many more of these :P

5. zepdrix

|dw:1432857850783:dw|

6. zepdrix

so what kinda problems? :d chapter 11 or something?

7. pooja195

All of chapter 11 i have 6 quizzes 1 on each section T_T

8. pooja195

Do anything it takes i need to pass!!!1

9. zepdrix

$\Large\rm \frac{3}{5}\div\frac{9}{25}$Let's start with something like this :d simplify.

10. pooja195

5/3

11. zepdrix

$\Large\rm \color{red}{\frac{3}{5}}\color{royalblue}{\div}\color{green}{\frac{9}{25}}$$\Large\rm \color{red}{Keep}\color{royalblue}{Change}\color{green}{Flip}$Mmm ok good you got it :)

12. zepdrix

$\Large\rm \frac{4x^2}{49}\div\frac{x}{7}$How bout this one?

13. zepdrix

brb

14. pooja195

I DONT KNOW T_T

15. pooja195

ZEPPY T_T I HATE THIS STUFF D:

16. zepdrix

$\Large\rm \color{red}{Keep}\color{royalblue}{Change}\color{green}{Flip}$

17. zepdrix

$\Large\rm \color{red}{\frac{4x^2}{49}}\color{royalblue}{\div}\color{green}{\frac{x}{7}}=\frac{4x^2}{49}\times\frac{7}{x}$Are you ok with that first step?

18. pooja195

Yes

19. pooja195

T_T i cant do this! >:I

20. zepdrix

cross cancel stuff that matches :)

21. pooja195

It makes no sense T_T

22. pooja195

ZEPPY T_T

23. pooja195

Can we skip this one its too hard R_R

24. pooja195

i dont like it T_T

25. zepdrix

$\Large\rm =\frac{4x^{\cancel{2}}}{\cancel{49}7}\times\frac{\cancel{7}}{\cancel{x}}$Cancel some stuff.

26. zepdrix

I cancelled an x from top and bottom, a 7 from top and bottom.

27. zepdrix

$\Large\rm =\frac{4x}{7}$And then just see what's left over.

28. zepdrix

skip it? :d but isn't this what your quiz is on? this kind of stuff?

29. pooja195

yes T_T

30. pooja195

i dont get it >_< he teached it a diffrent way .-. T_T

31. zepdrix

You really need to get comfortable with this "cancelling" idea. Here is a simple example:|dw:1432860109946:dw|

32. zepdrix

|dw:1432860187674:dw|

33. zepdrix

|dw:1432860300841:dw|

34. pooja195

OOOOOOOOO I GET IT!!! GIVE ME ANOTHER ONE

35. zepdrix

$\Large\rm \frac{8x^3}{7}\div\frac{2x}{21}$

36. pooja195

nvm i cant do it T_T

37. zepdrix

You understand the first step?$\Large\rm =\frac{8x^3}{7}\times\frac{21}{2x}$

38. pooja195

Right we flip so we can multiply

39. zepdrix

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40. zepdrix

Hmm I guess we have to break some stuff down and look for anything that cancels.

41. pooja195

nothing cancels

42. zepdrix

Nothing? 0_o

43. zepdrix

Right away you should notice that you have x's in the top, and an x in the bottom. So you know that you'll have AT LEAST one cancellation.

44. zepdrix

|dw:1432860789982:dw|So we can cancel an x out of top and bottom, ya?

45. pooja195

wait so after that you factor right?

46. zepdrix

we see a 7 and a 2 in the bottom. So we have to ask ourselves, do the 8 and 21 have any 2 or 7 factors in them? yes try to factor the 8 and 21. this isn't like the factoring we were doing back in last chapters though.

47. zepdrix

factors of 8? factors of 21? :o

48. pooja195

168? O-o

49. zepdrix

no. this is not like the other chapter. we're breaking down the 8 and 21, not multiplying them together.

50. zepdrix

8 = ?

51. pooja195

8=2x2x2 21=7x3

52. pooja195

****8=2x2x2x2

53. zepdrix

No, you were right the first time :) lol

54. zepdrix

|dw:1432861257936:dw|Mmm k good

55. zepdrix

so cancel some stuff.|dw:1432861329403:dw|ya?