1760564
7459120
9729831
[(x+y)/(x-y)]/ [( x2x^{2}x2 + xy + y2y^{2}y2 ) / x3x^{3}x3-y3y^{3}y3 ]
( x2x^{2}x2 + xy + y2y^{2}y2 ) / x3x^{3}x3-y3y^{3}y3
1990120
1821963
1687068
3x*4x
sqrt(5x^2-64)-x=0
1 // 2 * 3
24x/2
10(2x-3)=133-2(x-1)
4/5÷3/6+4/5×1/2
