(x-1)÷6=(x-3)÷9
先化简,再求值:1/x+1-3-x/x²-6x+9÷x²+x/x-3,其中x=根号2.
x^2-x/x+1÷x/x+1 ;x^2+6x+9/x^2-9÷x+2/x-3;2/a÷4/a
(1-x/3-x)^2÷(x^2-6x+9/9-x^2)*1/x^2-2x+1
(x+1-1/1-x)÷(x-x²/x-1) (x-4/x-x-6+ x+2/x-3)÷x+1/x-3
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+
先化简,再求值(1)1/x-3÷x-4/x²-6x+9+1-x/x+4,其中x=5
当x=9/2时,求(x^2+7x+10)/(x^2+6x+5)×(x^3+1)/(x^2+4x+4)÷(x^2-x+1)
(2x-6)/(x²-4x+4)÷(3-x)/(x²+6x+9)×(2-x)/(x+3)
数学计算(9x平方-6x+1)÷(x-2)×(2x-(x)的平方)÷(3x-1)
x平方+6x+9分之x平方-1÷(1-x)×x平方+4分之x+3
y=(x-1)(x-2)(x-3)(x-4)(x-5)(x-6)(x-7)(x-8)(x-9)(x-10)的导数在x=1
若x等于它的倒数则(x-1)(x+2)/x-1÷x^2-9/x+3=