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Mathematical calculation:
    Enter the mathematical formula directly and click the "Next" button to get the calculation answer.
    It supports mathematical functions (including trigonometric functions).
    Current location:Mathematical operation > History of Mathematical Computation > Answer
    Overview: 1 questions will be solved this time.Among them
           ☆1 arithmetic calculations

[1/1 Formula]
    Work: Calculate the value of equation 2200*395^2/2-(2200-180)*((395-120)^2)/2 .
    Question type: Mathematical calculation
    Solution:
          2200*395^2/2-(2200-180)*((395-120)^2)/2
        =2200*395^2/2-2020*((395-120)^2)/2
        =2200*395^2/2-2020*(275^2)/2
        =2200*395^2/2-2020*75625/2
        =2200*156025/2-2020*75625/2
        =343255000/2-2020*75625/2
        =171627500-2020*75625/2
        =171627500-152762500/2
        =171627500-76381250
        =95246250

    Answer:2200*395^2/2-(2200-180)*((395-120)^2)/2=95246250


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