(x-4)²-(x-3)(x+4)<2(3x-2),
(x-1)^3(x+1)(x-2)/(x+4)
(x+1)(x+2)(x+3)(x+4)+1
(2x-6)/(x²-4x)/(X+3)*( x²+x-6)/(3-x)等于多少?
(x+2/x+1)-(x+4/x+3)-(x+3/x+2)+(x+5/x+4)
计算(x*x+4x+5)/(x+2)-(x*x+6x+10)/(x+3)+1
解方程:(x-8)/(x-3)-(x-9)/(x-4)=(x+7)/(x+8)-(x+2)/(x+3)
(1) x-3/x-2 - x-5/x-4=x-7/x-6 - x-9/x-8
【计算(过程)】-x^2*(-x)^3+3x^3*(-x^2)-4(-x)*(-x)^4
先化简再求值:(x+2/x²-2x - x-1/x²-4x+4)÷ x-4/x,其中x=3/2
计算 ∫(x^4-2x^3+x^2+1)/x(x-1)² dx
3X+(X+2)+(X+1)*(X-1)=4*(X²+8)
(x-4)²-(x-3)(x+4)<2(3x-2),