(1 /(x-2)(x-3))-(2/(x-1)(x-3))+(1/(x-1)(x-2)) 等于多少 刷分的滚
(1 /(x-2)(x-3))-(2/(x-1)(x-3))+(1/(x-1)(x-2)) 等于多少 刷分的滚
(-x)1(-x)2(-x)3(-x^4)等于多少
(x+1)(x+2)(x+3)(x+4)等于多少
1X+2X+3X…+98X+99X+100X=50500X X等于多少?
x乘(x+1)乘(x+2)乘(x+3)等于360X等于多少
x-5x+5/3x-1/2 等于多少、
x的平方等于1-2x x等于多少
2/x-x+1/x=1 X等于多少
(x-1)(x-2)(x-3)(x-4)=0,求x等于多少,
请问1+x+2x+3x…99x+100x等于多少.
4x-3(x-5)=2x+(x-1) x等于多少
x的二次方+2x-【3/x的绝对值】-1 =0 x等于多少