化简:x+1/x÷x²-1/x²要具体步骤

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化简:x+1/x÷x²-1/x²要具体步骤
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化简:x+1/x÷x²-1/x²要具体步骤
化简:x+1/x÷x²-1/x²要具体步骤

化简:x+1/x÷x²-1/x²要具体步骤
(x+1)/x÷(x²-1)/x²
= (x+1)/x × x²/(x²-1)
= (x+1)/x × x²/{(x+1)(x-1)}
= x/(x-1)

计算x²-x/x²×x/1-x和x²-4y²/x²+2xy+y²÷x+2y/x²+xy (x²-4分之x²+x+1)²÷(x三次方-3x²+2x÷x三次方)²×(x÷x+2)² , 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) x²-1分之x²+x,化简x²-6x+9分之x²-9化简...T 化简:x+1/x÷x²-1/x²要具体步骤 x²-1/x²-2x+1÷x+1/x-1 X 1-x/1+x ①.X²-2X+1/X²-1 ÷ X²-X/X+1②.a-1/a²-4a+4 ÷ a²-1/a²-4③.x³-x²/x²-x ÷ x²-2x/x-1④.(x-y)²/x+y ÷ 1/y+x X 1/x-y帮下忙嘛 咯 x²+|x+2y|+2x=-1 化简【{3x²+2y}{-2y+3x²}-{x²-2y}²+8y²】÷{-2x}²的值 (x-3/x+3+6x/x²-9)÷1/x²-9化简就行 5x(x²+1) 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? 化简1+x+x(1+x)+x(1+X)²+.+(1+x)^1998 化简1+x+x(1+x)+(1+x)²+…+x(1+x)^2011 (x² +x+1)/(x² +1)+(2x² +x+2)/(x² +x+1) =19/6化成(x² +x+1)/(x² +1)+(x² +1)/(x² +x+1)=13/6急嗷 1.(x-2/x+2+6x/x²-4)×(x²-4)2.(1+x²-1/x²-2x+1)÷1/x-13.x²/x²-y²÷1/x+y+y²/y-x4.(1/x+1-1/1-x²)÷3x/x+1 一道数学题快回答急(x³)²÷x²×x+x÷(-x)²(-x²) 小的×就是乘 3b-2a²-(-4a+a²+3b)+a² (-a)²×(a²)²÷a³ (-x)³×x²n-1+x²n×(x)²(注意那个x²后 过程最好完整 (X+1)²(1-X)²/(X²-1)² ÷(X-1)²/X²-1 分式计算,((x+1)²(1-x)²)/((x²-1)²)÷((x-1)²)/(x²-1)