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Square root solution format, should I write "solution: original formula"
If it is a calculation problem, generally write "solution: original formula =".

If it is the square root of beginners,

For example, find the square root of 9,

It is generally written like this:

Solution: Because (3)? =9

So, the square root of 9 is 3,

Namely: √ 9 = 3.