(-1/2+1/6-3/8+5/12)x(-24) 计算
计算x^2-5x+6/x^2-1/x^2+x/x-3
计算(-2x+1)(-3x+5)
计算:(x+1)(x-2)(x-3)(x-6)
计算(x*x+4x+5)/(x+2)-(x*x+6x+10)/(x+3)+1
计算:(1/X^2+3X+2)+(1/X^2+5X+6)+(1/X^2+7X+12)=(1/X^2+9X+20)
已知x=根号2-1,计算x^10+2x^9-2x^8-2x^7+x^6+3x^2+5x+1的值
(-1/2+1/6-3/8+5/12)x(-24) 计算
计算5x(2x² -3x+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)
x(x²-1)+2x²(x+1)-3x(2x-5)计算