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    200√(x*x+2500)√(x*x+1)/(x√(x*x*0.01+1)√(x*x+25)) = 1
    -x^2-2.5x+3.5=0
    200√(x*x+2500)√(x*x+1)/(x√(x*x*0.01+1)√(x*x+400)√(x*x+9)) = 1
    200√(x*x+2500)√(x*x+1)/(x√(x*x*0.01+1)√(x*x+225)√(x*x+400)) = 1
    200√(x*x+900)√(x*x+1)/(x√(x*x*0.01+1)√(x*x+25)√(x*x+16)) = 1
    200√(x*x+2500)√(x*x+1)/(x√(x*x*0.01+1)√(x*x+25)√(x*x+16)) = 1
    30(x+1)*0.9=30x-18
    200√(x*x+1600)√(x*x+9)/(x√(x*x*0.01+1)√(x*x+25)√(x*x+16)) = 1
    200√(x*x+160)√(x*x+9)/(x√(x*x*0.01+1)√(x*x+25)√(x*x+16)) = 1
    200√(x*x+9)√(x*x+16)/(x√(x*x*0.01+1)√(x*x+25)√(x*x+16)) = 1
    30x+30x*0.9=30x-18
    200√(x*x+900)√(x*x+25)/(x√(x*x*0.01+1)√(x*x+1))√(x*x+16) = 1
    200√(x*x+900)√(x*x+9)/(x√(x*x*0.01+1)√(x*x+25))√(x*x+16) = 1
    200√(x*x+9)√(x*x+9)/(x√(x*x*0.01+1)√(x*x+100)) = 1
    200√(x*x+900)√(x*x+9)/(x√(x*x*0.01+1)√(x*x+100)) = 1
    200√(x*x+25)√(x*x+9)/(x√(x*x*0.01+1)√(x*x+25)) = 1
    200√(x*x+900)√(x*x+1)/(x√(x*x*0.01+1)√(x*x+25)) = 1
    200√(x*x+900)√(x*x+900)/(x√(x*x*0.01+1)√(x*x+25)) = 1
    200√(x*x+9)√(x*x+100)/(x√(x*x*0.01+1)√(x*x+25))= 1
    200√(x*x+1600)/(x√(x*x*0.01+1)√(x*x+25)) = 1

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