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[1/1 Formula]
    Work: Calculate the value of equation -2*8^2+30*8 .
    Question type: Mathematical calculation
    Solution:
          -2*8^2+30*8
        =-2*64+30*8
        =-128+30*8
        =-128+240
        =112
    Answer:-2*8^2+30*8=112

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