HOw to calculate 3*x - x^2
You're going to have to give us more information than this, at least for me to understand what you're trying to do.
OK, now that's an entirely different question from the one you first asked.
For a given x value,
1) Calculate 3 times x.
2) Multiply x by itself.
3) Subtract the result from step 2 from the result from step 1.
What does your question have to do with fractional dimensions?
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