计算,12+5/6x(5/4-3/1)
计算(x*x+4x+5)/(x+2)-(x*x+6x+10)/(x+3)+1
x/x-3-5x/x^2-x-6计算
分式计算:x^5-4x^3+x+2/x^3+6x^2+12x+8(约分)
计算1/(x^2-3x+2)+1/(x^2-5x+6)+1/(x^2-4x+3)
计算x^2-5x+6/x^2-1/x^2+x/x-3
计算:(x-1)(x^2-4X+3)-x(x^2-5X+2)有过程
计算(-2x+1)(-3x+5)
计算:1/5x² - 4x + x²/3 - 6x² + 3- x/3 -1
计算:2-3x/4-x-5/4>-4x+1/6+2/3
(1-5x+5x^2-4x^3)/(x^2-x+1) 用直式计算
5x+3=6x-12的计算全过程
计算:(1/X^2+3X+2)+(1/X^2+5X+6)+(1/X^2+7X+12)=(1/X^2+9X+20)