Mathematics
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    0=x^2-6x+5
    x^2=25+12√2
    x^2=25+6√2
    xxx-2xx+5x=0
    ARCTAG(0.46) =
     ARCTAG0.46
    -1.079666952516158=(1/x)*ln(1-x)
    x^3+4x^2+5x+3=0
    17600/x+5000/x=150
    x^2-x-8=0
    x+600=4x
    arctanx
    e(4x)=7-6x
    ln(5x)=2-7x
    ((2093+289-121-136-X-6140)/6140)*0.5=((1845+X)-3716)/3716
    x^3+22x+9=0
    (1÷X)+1÷(X+15)=1÷4
    X/1.09*0.09-X/1.03*0.03=182050.83
    X/1.09*0.09-X/1.03*0.03=42369.24
    (5+x)*12=140

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