-0.04429*x^2-2989.657-14.2367*exp(-1.03869*0.00048398*1.414/2*x) = 0
    -0.04429*x^2-2989.657-14.2367*exp(1.03869*0.00048398*1.414/2*x) = 0
    x^2+16=(8-x)^2
    0.00178*x^2-2989.657-14.2367*exp(1.03869*0.00048398*1.414/2*x) = 0
    0.00809*x^2-2989.657-14.2367*exp(1.08375*0.00048398*1.414/2*x) = 0
    0.00809*x^2-2989.657-14.2367*exp(-1.08375*0.00048398*1.414/2*x) = 0
    -0.08848*x^2-2989.657-14.2367*exp(-1.08375*0.00048398*1.414/2*x) = 0
    -0.12766*x^2-2989.657-14.2367*exp(-1.13187*0.00048398*1.414/2*x) = 0
    0.019*x^2-2989.657-14.2367*exp(1.13187*0.00048398*1.414/2*x) = 0
    -0.12766*x^2-2989.657-14.2367*exp(1.13187*0.00048398*1.414/2*x)=0
    -0.12766*x^2+2989.657+14.2367*exp(-1.13187*0.00048398*1.414/2*x)=0
    -0.12766*x^2-2989.657-14.2367*exp(-1.13187*0.00048398*1.414/2*x)=0
    1.8(5x-3)-[3/12+4x/12+3/8]=6(3x+4)-9(0.8x+1.7)
    10x²+2x＝9
    10x²+2x＝9
    a+（a*10%）=1200
    24-4x+10=18
    x＝1/2
    2380×4×x/12+20000×（12-x）/12=14228.82
    2380×4×x12=14225.82

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