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了解如何簡化大量Sqrt的平方根（128）

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了解如何找到數字的平方根。為了找到一個數字的平方根，我們確定要查找其平方根的那個數字是否是一個理想的平方。這是通過確定一個數字來完成的，當該數字升為2的冪時，會給出我們要查找其平方根的數字。如果存在這樣的數字，則該數字是所需的平方根。如果我們要查找其平方根的數字不是一個完美的平方，我們將該數字表示為該數字最大的完美平方因數的乘積。然後，所需的平方根是最大的平方根因子的平方根以及作為根數剩下的數字的其他因子（我們要查找其平方根）。

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#radicals #simplifyradicals。

28 comments

  16. Hey, I would like to know how you got 64 and 2 in the first place? Because I saw your reply to another』s comment but it didn』t make any sense to me.

  20. I have a better way.. …. for that u need to know multiplication and tables up to 13 ……ex.for 128 root . 11*11= 121 and 12*12=144 so128 root should be between them now the difference between 121 and128 is less than that between 144 and 121 so the decimal points should be more near to or less than 0 .5 …..and since decimaldoes not have that big effect in calculation so I assume it to 0.3 so √128 is 11.3 …..I did not use any calculators thought

  21. ?????…..and what to do if the number is not even ???… .no way was it helpful…..what do u think we are fools????….in the end there is no short cuts it completely depends on one practice in mathematics

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