2(x÷4+200)=3x÷4-200

2x^2-4x/x+2`x^2+2x/x^2-4x+4÷x/3x-6,其中x=根号3/2 x(2-1/x)+x/(x^2-2x)÷(3-x)/(x^2-4) (x+1-1/1-x)÷(x-x²/x-1) (x-4/x-x-6+ x+2/x-3)÷x+1/x-3 x+2x-3x-4x+5x+6x-7x.-196x+197x+198x-199x-200x 等于多少 先化简再求值:x^3-2x^2+4x/x^2-4x+4÷x^2-2x+4/x-2,其中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 已知(x-根号2+1)(x-2)=0,求代数式[(x-1)/(x-3)-(x-4)/x]÷（x^2+x-6)/(x^2+ 先化解,在求值;(3x/x-1-x/x+1)÷x四次方-4x²/x³-x,其中x=根号2+2 (2x-6)/(x²-4x+4)÷(3-x)/(x²+6x+9)×(2-x)/(x+3) 先化简再求值[3x/(x+2)-x/(x-2)]÷2x/(x^2-4) 3x/(x-2)-x/(x+2)÷2x/(x-4)化简 x^5+x^4 = (x^3-x)(x^2+x+1)+x^2+x