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i have the hardest time doing sqaure roots...its easy if its like 9 or 64 or something like that but when ikts 47 or 128 or 90...i dont know how to do it...when the answer equals a # rad a #...if anyone knows what im talking about and can help me...please help!
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Square roots suck.
The only way I've found helpful is to use a calculator. Any Texas Instruments calculator with scientific functions is good. The traditional method for finding imperfect square roots is just about impossible. Use the radical sign (looks kind of like a checkmark) and then enter the number. Press enter or equals and you will have a long decimal. There ya go!
If you are looking to simplify a radical, take the perfect squares out of it. Put them on the outside. A site that explains this in more detail is here: [Link](Mouse over link to see full location)
Good Luck!
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use a calculater..duh
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just try and find the highest number that goes into it easily its simple i havent learned that yet cuz u no my skools ass poor but hey i guess i already no
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The easiest way to do it is to find the largest perfect square (4, 9, 16...etc.) that the # is evenly divisible by. If you can't do it mentally, just factor the # completely. For example, let's say you have the square root of 20. 20 factors into 2, 2, and 5. Since you have TWO 2s, and you're finding the SQUARE root, you can pull them out, leaving you with 2(radical)5.
Another example...square root of 12: 12 factors into 2, 2, and 3. pull out the 2, and you're left with 2(radical)3.
The same concept applies for cube roots, etc., just instead of needing 2 #s (perfect square) to be able to pull it out, you need 3(or whatever other #, depending on the root).
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we are doing this now in math class and i can try and help you if you just send me the exact problem or something like that. All you do is look for a perfect square root. like 9 and 64 that will go into your number. Lets say that the number is 20. 4 can go into 20 and 4 is a perfect square root. Now what you do is you would write it.. rad. 4 rad. 5 (because 4 times 5 = 20). Then you take the square root of 4 since that is possible and you write it in where the rad and 4 used to be so you would get. 2 rad. 5.. and thats your answer. Sorry this was so long. good luck!
♥ Katie
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ok, square roots are not ot hard. depending on the calculator you are using. ifi t is a TI83 or above, it shoudl give you a decimal. if it gives you like 3 radical 2, that means three times the square root of two. depending on the class, soem may want oit like that, soem may want like radical 786 or w/e. some may want a decimal. if your calc is really advnaced and it is giving you a funky thing...try changing the mode to aproximate. or try a regular calculator. if oyu need more help drop me onei n my box...or email me at StageAddict05@hotmail.com.
good luck!
Juelz
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