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