Math
I posted these 2 questions a couple of days ago and although the help I received would have been more appreciated if it didn't come with an underhanded comment, I did see where I made my mistake with the first question, however I would like to know with the second question, how the tutor came up with the answer w^4? What do we do with a positive exponent in the denominator when we bring the negative numerator down to the denominator?
Please see previous question:
Hello, I have two more rational exponent question that I wanted to verify please:
4x^3y^2
_________
2x^1y^4
= 2x^4y^6
is this correct?
2nd question:
[w^1 / w^3]
my answer:
= [w^(1)(4)/ w ^ (3)(4)]
= w^4 / w^12
= w^12 / w^4
= w^3 / w
Is this right?
Math  drwls, Thursday, November 18, 2010 at 2:41pm
Both are wrong. You seem to have no idea at all how to handle exponents.
The answers are
2x^4 y^6 and w^4.

1.
4x^3y^2 / 2x^1y^4 = 2x^3x^1 / y^4y^2=
2x^4 / y^6.
2. W^1 / W^3 = W^1W^3 = W^4.
RULES:
1. NEVER leave neg. exponents in your
final answer.
2. When multiplying, always add the
exponents.
3. When dividing, subtract the expon.
in the denominator from the exponent in
the numerator and put the results in
the numerator. If the results is neg.,
move it to the denominator as a positive.
posted by Henry
Respond to this Question
Similar Questions

English
I have posted two essays recently and have received no response, one was only a few hours ago but the other one was over 10 days ago....pls help with the one from two hours ago or let me know if you are unable to help. thanks 
Comment
I am a freshman in college and this is the first time I have received help over the internet. I have been using this site for a couple of days now and all I have to say is that this site is great! I would like to say thanks to all 
Grammar
I'm still really confused with this one; I posted it up a couple of days ago but never got the answer Is this a dangling modifier? To the victor goes the privelage of writing history. MC 
To debbie: business math
You've posted at least 25 business math questions in the last couple of days, with no indication of your own efforts. In addition you ignored my request to respond to the requests we made to your early posts. As I told you 
Statistics (Probability)
I just asked a question a few minutes ago. But this is the last two questions I need help with. I have tried a couple different answers for both and still can't seem to get the correct ones. Four draws are going to be made at 
chemistry
couple theory questions i don't quite understand... What is vapor pressure ad why does it change with temperature? and... The assumption was made that slight changes in the depth under the surface of the water will not 
math,drbob222
I'm sorry the problems i posted had a couple of errors how i posted it here they are: Posted by DrBob222 on Friday, November 24, 2006 at 6:19pm in response to Math. Thanks for showing your work. It helps us to know where you are 
To Emma
You've been banned from posting on Jiskha for a couple of days. Twice you posted questions with my name in the Name box. Do not try to impersonate anyone else on this forum. 
English
1. It was his mistake that he didn't walk the dog on a lead. 2. It was his fault that he didn't walk the dog on a leash. 3. He made a mistake by not using a dog lead. 4. By mistake, he didn't walk the dog on a lead. 5. He should 
Site not working correctly/Physics
I posted a question a couple of days ago which was answered by DRWLS  thank you. Unfortunately I am unable to read the guidance provided as the typing is obscured by the adverts down the right hand side of the page. Look forward