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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