5X+7-(4x+0.18)化简
5X+7-(4x+0.18)化简
|X-1|+|X-2|+|X-3|+|X-4|+|X-5|+|X-6|+|X-7|+|X-8|+|X-9|+|X-10|
x+2x+3x+4x+5x+6x+7x+8x+9x=9x-8x-7x-6x-5x-4x-3x-2x-x.x等于多少?
2x+3x+4x+5x+x+6x+7x=100
|x+5|+|x-7|+|x+10|化简
x-4/x-5 - x-5/x-6=x-7/x-8 - x-8/x-9求x=?
化简:(5x+7)-(4x-0.18)
化简(-2x^2)+3x+2)-3(7x^2-5x-1)-(4x^2-x+6)
x+2x-3x-4x+5x+6x-7x.-196x+197x+198x-199x-200x 等于多少
化简,再求值:2(X-8)(X+5)-(2X-1)(X=2),其中X=-7 化简:(-4X+1)(2X+3)-(-8X)
化简:x平方-x-2/x平方-x-6除以x平方+4x-5/x平方+2x-10
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