化简~(x²+3x+9/x²-27)+(6x/9x-x²)-(x-1/6+2x)(x²+3x+9/x²-27)+(6x/9x-x²)-(x-1/6+2x)注意了!是三个分式!(x²+3x+9)/(x²-27)+(6x)/(9x-x²)-(x-1)/(6+2x)

分式加减法：化简：x²+9x/x²+3x+x²-9/x²+6x+9 化简~(x²+3x+9/x²-27)+(6x/9x-x²)-(x-1/6+2x)(x²+3x+9/x²-27)+(6x/9x-x²)-(x-1/6+2x)注意了!是三个分式!(x²+3x+9)/(x²-27)+(6x)/(9x-x²)-(x-1)/(6+2x) 分式：化简：x²-9/x-3 x²-9/x²+2x-3乘3x²-x-2/x²-5x+6, 1.x²-2x-3 2.x²-5x-6 3.x²-9x-10 4.x²-9x-10 5.x²-2x-8 6.x²+2x-8 7.x²-x-12 8.x²+x-12 9.x²+6x-16 10.x²-14x-32 11.x²+7x-18 x²-1分之x²+x,化简x²-6x+9分之x²-9化简...T xy²/(x²y-y) × x²/(x²+x)=(x²-3x)/(x²-5x) × 2x-10/(x²-6x+9)=化简求植x²-1/(x²-x-2)除以x/2x-4,其中x=1/2[x-x/(x+1)]除以[x/(2x-4)] ,其中x=√2+1 x²+3x分之x平方+9x+x²+6x+9分之x²-9 化简~化简~(x²+3x+9/x²-27)+(6x/9x-x²)-(x-1/6+2x)注意了！是三个分式！(x²+3x+9)/(x²-27)+(6x)/(9x-x²)-(x-1)/(6+2x) 1(x²-9)/(x²+2x²+x)*(3x³+9x²)/(x³-3x),其中x=-1/3 计算：x²-6x+9/x²-x-6÷x²-9/x²-3x-10 乘以x+3/2x-10 3x² - 9x + 2 = 0 x² - 14x = 8 x² + 6x = 1 (x-3/x+3+6x/x²-9）÷1/x²-9化简就行 1/X²+3X+2 +1/X²+5X+6 +1/X²+7X+12 +1/X²+9X+20 1、解关于x的方程：a（x²＋1）＝4x²＋22、√（x＋11）＝1－x3、（5x／x²－9）＋（5／x＋3）＝1＋（x／x－3）4、（x²＋2／2x²－1）－（6x²－3／x²＋2）＋2＝0x＋2y＝125、{x&s （2x-3y）²（2x+3y）²（4x²+9y²）²化简 化简x(x-1)+2x(x+1)-3x(2x-5)我是这一算的，化简x(x-1)+2x(x+1)-3x(2x-5)=x²-x+2x²+2x-6x²+15x=x+2x²-6x²+15x=18x+2x²-6x²=12x²-6x²可以相减吗，还是我算的不对了？ （3x-2y)²(3x-2y)²(9x²+4y²）²