Overview: 2 questions will be solved this time.Among them
           ☆1 inequalities
           ☆1 calculations of prime factor

[ 1/2Inequality]
    Assignment:Find the solution set of inequality x-2x ≤ 0 .
    Question type: Inequality
    Solution:
    The inequality can be reduced to 1 inequality：
         x - 2 * x ≤ 0         (1)

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    From inequality(1)：
         x ≥ 0

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    The final solution set is :
         x ≥ 0
[2/2 Digtal analysis]
    Work：Break 0 into prime factors.
    Question type: Resolving prime factor
    Solution:
        0
    The comb entered is invalid!Please enter a prime number or a composite number.

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