10. Let f(x) = x - 20x with domain x< 10. Use f(x) to answer parts (a) and (b). Fill in the blanks. (a) Find a formula for f (X). fx) = (b) Use interval notation to describe the domain of f 1 (x). Use a comma to separate intervals, as need The domain of f(x) is

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Q: Write x7 - x as a product of linear factors over Z3. Do the same for x10 - x.

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