0.7*(10542.4m^2-1945.6m+432/m+768/0.1+3055.5*0.1+2218.44)/(29.64m+12*0.1)+6*(48146.1m^2+767.96*0.1^2+11381.8m/0.1+2592*0.1/m+56243.2m-32372.9*0.1-26295.8*m*0.1-117697.6)/（29.64m+12*0.1）^2 = 0
    0.7*(10542.4m^2-1945.6m+432/m+768/0.1+3055.5*0.1+2218.44)/(29.64m+8.4)+6*(48146.1m^2+767.96*0.1^2+11381.8m/0.1+2592*0.1/m+56243.2m-32372.9*0.1-26295.8*m*0.1-117697.6)/（29.64m+8.4）^2 = 0
     (10542.4m^2-1945.6m+432/m+768/0.1+3055.5*0.1+2218.44)/(29.64m+8.4)+6*(48146.1m^2+767.96*0.1^2+11381.8m/0.1+2592*0.1/m+56243.2m-32372.9*0.1-26295.8*m*0.1-117697.6) = 0
    (10542.4m^2-1945.6m+432/m+768/1+3055.5*1+2218.44)/(29.64m+8.4)+6*(48146.1m^2+767.96*1^2+11381.8m/1+2592*1/m+56243.2m-32372.9*1-26295.8*m*1-117697.6) = 0
    (10542.4m^2-1945.6m+432/m+5454.3)/(29.64m+8.4)+6*(48146.1m^2+767.96-0.7^2+11281.8m/0.7+2592*0.7/m+56243.2m-32372.9*0.7-26295.8*m-117697.6)=0
    （134014-x）/x=5.69%
    2(14509+370x)=3830+1000x
    14509+370x=3830+1000x
    14509+370x=3830+1000
    2:X=（5/6）:（2/3）
    9+9=x
    ln(x^2+4)+x/4
    e^x+3*x
    (1200-50x)x=7200
    12k∧2-35k+24=0
    12k∧2-35k+48=0
    0.25xx-x-3=0
    0.25x-x-3=0
    3.995=（（0.0219*x^1.85+129）^0.5）*x^0.84
    45576472.16*(1-x)*x=1412982.5

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