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In order to simplify the process of solving the equation. Technically you don't have to,

but it's much easier to simplify than to try and make this long complex formula.

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I have a better suggestion:

Would you rather go into a store and ask for ' sqrt(24) + 18 log(1) - cosine (pi) ' rolls

of paper towel, or would you find it generally more convenient to ask for ' 3 ' rolls ?

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12y ago
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Q: Why do you simplify numerical expression?
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