## johndeergurl Group Title plz help explain: 3/x^3/1/x^2 ? I will up load a better picture. 2 years ago 2 years ago

1. johndeergurl Group Title

2. mandonut Group Title

dividing by 1/x^2 is the same as mutiply the numerator by x^2

3. mandonut Group Title

|dw:1342752270031:dw|

4. Romero Group Title

Wait that is wrong.

5. johndeergurl Group Title

I understand that part what I dnt get is do both of my x^2 and x^3 cross out?

6. Romero Group Title

$\frac{3}{\frac{x^3}{\frac{1}{x^2}}}=\frac{3}{x^3}\frac{x^2}{1}=\frac{3x^2}{x^3}=\frac{3*x*x}{x*x*x}$

7. Romero Group Title

You have two x's on the top and you have three in the bottom right?

8. johndeergurl Group Title

yes.

9. Romero Group Title

Two from the top cancel two from the bottom

10. Romero Group Title

so you are left with zero x's on the top and one x on the bottom

11. Romero Group Title

understand?

12. johndeergurl Group Title

so it would just be 3x

13. Romero Group Title

No I said there will be zero x on the top and one in the bottom of the fraction

14. johndeergurl Group Title

3/x

15. Romero Group Title

$\frac{3*x*x}{x*x*x}=\frac{3}{x}$

16. Romero Group Title

yes you are correct good job

17. johndeergurl Group Title

okay thank you. :) you were very helpful.

18. Romero Group Title

Sure thing