（200*10000+850000）*25% = 10000*p-10000*p*5%-（200*10000+850000 )
     （200*10000+850000）*25% = 10000*p-10000*p-（200*10000+850000
    （200*10000+850000）*25%=1000*p-10000*p-（200*10000+850000）
    2X*X-25X+144=0
    m-4=1/6m+1/3
    0.5*4.71*(8.5*50+75*h)+1.77*0.85*0.8*(550+(6*(12*18.8+h*21.5)*(9+h)/(12+h)))=6891.255+6.181h
    m+2-6=（m+2）/6
    0.5*4.71*(8.5*50+15*h)+1.77*0.85*0.8*(550+(6*(12*18.8+h*21.5)*(9+h)/(12+h)))=6891.255+6.181h
    0.5*4.71*(8.5*50+15*h)+1.77*0.85*0.8*(550+(6*(12*18.8+h*21.5)*(9+h)/(12+h)))
    X-0. 1X/4=19300
     849.671h+(225.6+21.5h)*(9+h)/(12+h) = 26063.809
    849.671h+(225.6+21.5h)*(9+h)/(12+h)=26063.809
    849.671h+(225.6+21.5)*(9+h)/(12+h)=26063.809
    597*(1-x^10)/(1-x)=8102.58
    597*(1-x^10)/(1-x)=6861.64
    0.4434*{（x-sin（2πx）/2π）+（3x-1.25）*0.19}＝2/3*{（sin(πx）)^3/π}+0.19*540/600*{sin(πx)+sin(1.25π-2πx）}/π
    1/sqrt（1+x∧2）
    0.09×Q×Q-1.2Q+8=5
    0.75X^2-4.1x+3.67=0
    20X^2-132x+205=0

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