(1) x-3/x-2 - x-5/x-4=x-7/x-6 - x-9/x-8
(x-2)(x-3)+2(x-5)(x+6)-3(x^2-7x+12)
1x+2x+3x+4x+5x+6x+7x+8x+9x+10x+11x+12x+13x+14x+15x=550
六年级的方程,只有五道 x-128×3=0.06-2x x(2+x)=4x(12+3x) 7x+5
解分式方程1/(x²+3x+2)+1/(x²+5x+6)+1/(x²+7x+12)1/(x
(5x+7)(2x-3)-9x(x-2),其中x=−12
用递归法求y=x-(x*x*x/3!)+(x*x*x*x*x/5!)-(x*x*x*x*x*x*x/7!)+.
初一数学x*x+2x+5的值为7,请求3x*x+6x+3的值.因为x*x+2x2x+3=3x(x*x+2x)+2x+2x
((x²-5x+6)/(12-7x+x²))²÷((x²+3x+2)/(x
化简:9x-12x+5x,3x-5x-2+5x+8,3x+5+2x+3-7-11x
解方程.(5x/x²+x-6)+(2x-5/x²-x-12)=7x-10/x²-6x+8
5x/(x+3)(x+2)+(2x-5)/(x-4)(x+3)=(7x-70)/(x+2)(x+4)