1.15-9y3x+6 3.3( x-1) x-2( x-6)
1.15-9y3x+6 3.3( x-1) x-2( x-6)
用公式法做Y的平方+4=6Y3X的平方-8X=-2这个不用过程:2X的平方+5X=2
计算:[23x−2x+y(x+y3x−x−y)]÷x−yx
化简求值:[23x−2x+y(x+y3x−x−y)]÷x−yx
解方程组2x−5=y3x−2y=12
3y的平方=12y3x的平方-5x=0(x+3)的平方=2x(x+3)
|X-1|+|X-2|+|X-3|+|X-4|+|X-5|+|X-6|+|X-7|+|X-8|+|X-9|+|X-10|
(x+2/x^2-x-6)-(2x/x^2-3x)-(x+1/x^2-6x+9)
x+2/x^2-x-6 + 2x/x^3-3x - x+1/x^2-6x+9
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
设函数f(x)=(x-1)(x-2)(x-3)(x-4)(x-5)(x-6)(x-7)(x-8)(x-9)(x-10),
求化简:(x^2+3x+9)/(x^2-27)+(6x)/(9x-x^2)-(x-1)/(6+2x)