分式1/4(x2-5x+6) 1/2x2-8x+6 1/ 3(x2-3x+2) 的最简公分母是?
解分式方程:2/x2+5x+6 + 3/x2+x-6=4/x2-4
解分式方程:1/(x2-2x-3) +2/(x2-x-6) +3/(x2+3x+2)=0
同时使分式x−5x2+6x+8有意义,又使分式x2+3x(x+1)2−9无意义的x的取值范围是( )
(x2+3x+9)/(x2-27)+(6x)/(9x-x2)-(x-1)/(6+2x)
解方程:1/x2+x +1/x2+3x+2 +1/x2+5x+6 +1/x2+7x+12 +1/x2+9x+20=5/x
化简计算~1/(x2-5x+6) - 1/(4x-x2-3) - 1/(3x-x2-2)
证明:(x3+5x2+4x-1)-(-x2-3x+2x3-3)+(8-7x-6x2+x3)的值与x无关.
1/(x2+3x+2)+1/(x2+5x+6)+1/(x2+7x+12)=1/(x+4)
分式计算:2x/x2-x-2÷(1-x/x+1)-x2+2x/x2-4
多项式x2-3x+2,x2-18x+32,x2+x-6的公因式是( )
若x2-3x+1=0,求分式x2/(x^4+x2+1)的值是
分式1/(x^2-3x+2)和1/(5x-6-x^2)的最简公分母是