18x-81-x^2=0
    a*a+（a+3）*（a+3）=225
    a*a
    ((X-82000)*0.05)+X=4836106
    -π/2-arctan0.5*x-arctan0.15*x=-125*π/180
    X*0.27=675
    -90-arctan0.5*x-arctan0.15*x=-125
    x*0.27=635
    （x-40）（-10x+740）=2400
    ((X-82000)*0.05)+X=4822478
    （1➕x）^3乘（1-x）^2=1
    4x^6+5x^4+x^2-1=0
    x^6+56x^4+9775x^2-5625=0
    x^6+100x^4+400x^2-40000=0
    4*x^2+2*x=0
    (0.670738561^x)-x*(-0.70309448)-1=0
    x^6+100x^4+400x^2-40000=0
    320.8x＾3+x=0
    （20+2x）*（40-x）=1200
    （15800+40x700）x0.9=

Home page << page2297 page2298 page2299 page2300 page2301 ... ... page2303 page2304 page2305 page2306 page2307 >> Last page 31237 pages in total