115*1.5*(0.63*(x-0.43)-0.63*0.63/2)*(1+0.06x)=90*(2.1-x-0.5)*(1-0.1x+0.25)
    23*s^3+45*s+36=0
    6+7m=3+9m-2-3m
    115x1.5
    -(2q-5)=3q+10
    -(-2q-5)=3q+10
    0.101*(1-exp(-1.1*0.08))*44.6*1000*0.72 = x
    2(p-1)=3p-4
     8 { x }^{ 4 } +30 { x }^{ 3 } +7 { x }^{ 2 } +16x-5
    2s=3(1+s)+18
    2(3+r)-5r=-9
    2(3+r)=-9
    (X-40)*(740-10X)=2250
    2(3+r)-5r=-9
    0.101*(1-exp(-1.1*x))*44.6*1000*3.14*x^2 = 17.88854
    -3(a-3)=6a
    （4-x)-((4-x)+3)=4
    0.101*(1-exp(-1.1*x))*44.6*1000*3.14*x^2 = 8.94427
    x^6+2x^4+3x^2+4=0
    0.101*(1-exp(-1.1*x))*44.6*1000*3.14*x^2 = 17.8885

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