anonymous
  • anonymous
awesomeeee.
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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chestercat
  • chestercat
I got my questions answered at brainly.com in under 10 minutes. Go to brainly.com now for free help!
anonymous
  • anonymous
IS there anything in front of the 3 ?
anonymous
  • anonymous
Or is the question asking the cube root?
anonymous
  • anonymous
yeah cube root (:

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anonymous
  • anonymous
Ok so, take this step by step. If you have ^3√24a^10b^6 , start with 24 first. Find a perfect cubed number in 24. Do you know what it is ?
anonymous
  • anonymous
no :/ im really bad at math:(
anonymous
  • anonymous
A perfect cubed number is anything that has the same 3 numbers multiplied. For example, 3*3*3= 27 so 27 is a perfectly cubed number. If you had the number 54, you would look for factors of 54 that would have a perfect cubed number. So factors of 54 are (1, 2, 3, 6, 9, 18, 27, 54) So if you looked through the numbers, you would see that 27 is the perfect cubed number. So, back to the question, go through the factors of 24 and see what number has 3 of the same numbers multiplied to get that number.
anonymous
  • anonymous
3?
anonymous
  • anonymous
6, 2, 3, 4, 24, 1, 12, 8?
anonymous
  • anonymous
No... The factors of 24 are (1, 2, 3, 4, 6, 8, 12, 24) .... Now I told you that 3*3*3=27 so it has to be lower. So do 2*2*2 .. That = 8. 8 is a factor of 24 and it is a perfect square.
anonymous
  • anonymous
So, 24 would break into 8 * 3. The 8 will come out of the cube root as 2 ( because 2*2*2=8) leaving you with the 3 in the inside of the cube root.
anonymous
  • anonymous
so you would have 2, ^3√3a^10 b^6 ... get it?
anonymous
  • anonymous
wait, why did you chose 8? :/ like how do you know if its a perfect square?
anonymous
  • anonymous
ohhh, get it now! your awesome!
anonymous
  • anonymous
Sorry, i meant perfect cube root. What you should do is pull up a list of perfect cube roots. I'll give you the first 10. 13 = 1 23 = 8 33 = 27 43 = 64 53 = 125 63 = 216 73 = 343 83 = 512 93 = 729 103 = 1000
anonymous
  • anonymous
thank you soo much :D!!
anonymous
  • anonymous
Ok wait , we're not done!
anonymous
  • anonymous
and the formulas i gave, it is not 13, 23, 33, in the first column. it is supposed to read 1^3, 2^3, 3^3, etc
anonymous
  • anonymous
So now we have to move on to a^10. How many times does 3 go in evenly to 10? (this is because you have ^3√a^10
anonymous
  • anonymous
2?
anonymous
  • anonymous
When it comes to exponents for letters, you divide normally instead of trying to find the cube root. Example : ^3√a^7 ... 3 would go into 7 twice so you would have a^6 come out with ^3√a left inside. = a^6, ^3√a
anonymous
  • anonymous
sorry sorry a^2 come out with ^3√a in the inside***
anonymous
  • anonymous
= a^2, ^3√a
anonymous
  • anonymous
So, for ^3√a^10 , how many times does 3 go into 10?
anonymous
  • anonymous
that kinda confused me, 3 times r 1? im not sure
anonymous
  • anonymous
3 will go into 10 , 3 times. (3*3 is 9.) .... So a^3 will come out and merge with the 2 from earlier making it 2a^3 and the last a (since only 9 were taken out) will stay inside. So, so far, we have 2a^3 ^3√3a b^6
anonymous
  • anonymous
ohh! got you
anonymous
  • anonymous
it's actually making more sense now, like as we go on :D!
anonymous
  • anonymous
So, then can you figure out what to do for ^3 √b^6
anonymous
  • anonymous
yess, tyy!
anonymous
  • anonymous
glad to help :)

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