4/3+5/2X=10/9.x是多少?
1X?+2X?+3X?+4X?+5X?+6X?+7X?+8X?+9X?+10X?=1980求?是多少
7x-6+5x+1=4x+3-2x求x是多少
若x^2-3x+1=0,则(2x^5-5x^4+2x^3-8x^2)/(x^2+1)的值是多少?
初一数学1/2X-3=5X+1/4 X的是多少
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),
x^5+x^4 = (x^3-x)(x^2+x+1)+x^2+x
|X-1|+|X-2|+|X-3|+|X-4|+|X-5|+|X-6|+|X-7|+|X-8|+|X-9|+|X-10|
(1)16x-40=9x+16是多少?(2) 4x=20/3x+16 (3)2(3-x)=-4(x+5) (4)3(-2
1x+2x+3x+4x+5x+6x+7x+8x+9x+10x+11x+12x+13x+14x+15x=550
函数f(x)=x^3一4x^2十3x的零点是多少
2x+1/3-10x+1/6=x ,x的值是多少