anonymous
  • anonymous
Can someone please help me.??
Mathematics
katieb
  • katieb
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skullpatrol
  • skullpatrol
Maybe.
anonymous
  • anonymous
alright...
skullpatrol
  • skullpatrol
You have to want to put in effort first by giving a question.

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anonymous
  • anonymous
I know that... I don't want anyone to give me the answer to my question I just need it to be explained to me because I don't know how to start the problem off..
skullpatrol
  • skullpatrol
OK I'll try if you do :-)
anonymous
  • anonymous
okay hold on. ill show you the problem.
anonymous
  • anonymous
What is the simplified form of –9m–2n5 × 2m–3n–6
anonymous
  • anonymous
its actually like -9m^ - 2n ^ 5 x 2m ^ -3 n ^ -6
skullpatrol
  • skullpatrol
|dw:1359748684973:dw|
skullpatrol
  • skullpatrol
Draw it please.
anonymous
  • anonymous
|dw:1359748703606:dw|
skullpatrol
  • skullpatrol
Much better, thank you :-)
anonymous
  • anonymous
No problem :) haha it can be confusing when typing equations :/
skullpatrol
  • skullpatrol
Do you know that when you multiply powers with the same base you add the exponents.
anonymous
  • anonymous
Yeah I do.
PhoenixFire
  • PhoenixFire
\[-9m^{-2}n^52m^{-3}n^{-6}\] You'd use the rule of: \[ax^nbx^m=abx^{n+m}\]
skullpatrol
  • skullpatrol
|dw:1359748948928:dw|
anonymous
  • anonymous
I've never seen that rule before?
anonymous
  • anonymous
So the 5 and the 6 are going to be added??
anonymous
  • anonymous
-6*
skullpatrol
  • skullpatrol
Yes.
anonymous
  • anonymous
|dw:1359749072352:dw|
anonymous
  • anonymous
Is this right?
skullpatrol
  • skullpatrol
Not completely.
anonymous
  • anonymous
where is it wrong?
PhoenixFire
  • PhoenixFire
Add the powers up again. (-2)+(-3) and (5)+(-6)
anonymous
  • anonymous
would that be-5 & -11?
anonymous
  • anonymous
yayy! ok hold on im gonna try and work it :)
anonymous
  • anonymous
|dw:1359749280221:dw|
skullpatrol
  • skullpatrol
$$5 + (-6) =?$$
anonymous
  • anonymous
-1
skullpatrol
  • skullpatrol
Correct.
anonymous
  • anonymous
ohh alright. but is that the answer? I thought it would get turned into a fraction?
skullpatrol
  • skullpatrol
We are not finished.
anonymous
  • anonymous
what's the next step? I don't know it.
skullpatrol
  • skullpatrol
First fill in the correct exponents please.
anonymous
  • anonymous
|dw:1359749569881:dw|
skullpatrol
  • skullpatrol
Good job. The next step is to put the factors with the negative exponents into the denominator of a fraction.
anonymous
  • anonymous
|dw:1359749793777:dw|
anonymous
  • anonymous
like this?
skullpatrol
  • skullpatrol
Correct. Excellent work!

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