anonymous
  • anonymous
can someone help me with my math homework?
Mathematics
katieb
  • katieb
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mathteacher1729
  • mathteacher1729
Sure, post your question/s here!
anonymous
  • anonymous
aman=am+n thats the first problem...... the m and ns go on top
mathteacher1729
  • mathteacher1729
Oh, to type that you must use this notation: \ [ x^2 \ ] gives \[ x^2 \]

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mathteacher1729
  • mathteacher1729
Or click the "equation" button on the left of the text input field, and type your equation. :)
anonymous
  • anonymous
thats complicated
anonymous
  • anonymous
when i see math i get lost.... is there any other way you could help me?
mathteacher1729
  • mathteacher1729
Ok, I think you were trying to type this: \[a^ma^n=a^{m+n} \] if so, this is the "exponent addition law".
anonymous
  • anonymous
yes that is exactly what i was trying to type
anonymous
  • anonymous
whats the answer?
mathteacher1729
  • mathteacher1729
There isn't any "answer", really. It's stating a rule. :) a = "the base" m, n = "the exponents" The rule says that if you (LEFT SIDE) multiply two numbers together, if the bases are the same, you (RIGHT SIDE) add the exponents and keep the base the same.
anonymous
  • anonymous
ok im lost... how would you do it though?
mathteacher1729
  • mathteacher1729
So they might ask you something like: \[ 4^74^{12}=??\] and you would say ... \[4^74^{12}=4^{7+12} =4^19\] Which, by the way. Is A HUGE NUMBER. :-p
mathteacher1729
  • mathteacher1729
ARGH, my error! \[4^74^{12}=4^{7+12}=4^{19}\] Four to the nineteenth power. = HUGE.
anonymous
  • anonymous
im confused.... is there any way you could teach it step by step?
anonymous
  • anonymous
where do you get numbers if there is only letters??
mathteacher1729
  • mathteacher1729
I just made up the "bases" and the "exponents" then followd the followed the rules. It sounds like you need a quick refresher on exponents. Have you heard of Khanacademy?
anonymous
  • anonymous
no i havent.... i have a math class tonight but i never understand it
mathteacher1729
  • mathteacher1729
Ah, ok. I would recommend starting by going to http://www.mathtv.com and then clicking Algebra ==> Exponents ==> Definitions and Properties Watch the first two videos. That guys is a GENIUS who explains things VERY WELL. :)
anonymous
  • anonymous
ok thank you... ill try to see if i finally get it
mathteacher1729
  • mathteacher1729
Yeah, that guy is the best. I think you may find his vids helpful. Khanacademy is another free video service, but he's not as organized as Mathtv. :) Best of luck to you!
anonymous
  • anonymous
thanks

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